Netflix¡¯s Sirens ending explained: Why did Simone replace Michaela, what made Devon leave the island, and will there be season 2 ?

Netflix's Sirens ending explained: Okay, first things first, you need to watch Sirens on Netflix. It has its flaws, sure, but it¡¯s addictive, and with all five episodes out, it makes for a cozy binge-watch. For those of you who¡¯ve already watched the Julianne Moore, Milly Alcock, and Meghann Fahy starrer, we¡¯re breaking down its ending and exploring the possibilities of a new season.

The Netflix series, which is also being compared to HBO¡¯s The White Lotus for its portrayal of the lives of the uber-rich, has fans hooked. It follows two sisters, Devon and Simone DeWitt, from Buffalo, New York, with a dead mother and an absent, alcoholic dad who now also has Alzheimer¡¯s. It doesn¡¯t get worse than this, you¡¯d think ¡ª but that¡¯s not exactly true.

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What's Netflix's Sirens about?

Sirens begins with the elder sister, Devon (Meghann Fahy), setting off on a quest to find her sister on a luxury island after she goes MIA. The younger sister, having not seen their dad in a decade and her sister for years, has gone completely off the grid, living a whole new life and not just blending in but thriving in the world of attorney-turned-millionaire philanthropist Michaela Kell while working as her personal assistant cum best friend. But her perfect little world shatters when Devon shows up at the Kell mansion ¡ª and Devon is completely in disbelief at the hold Kiki has over her sister. We're talking about being unable to finish a sentence without name-dropping, Kiki-kind of influence.

Simone (L) and Michaela (R)| Credit: Netflix

After Michaela subtly arranges for Devon to be sent off the island, Devon becomes convinced that Michaela is more than just a manipulative socialite¡ªshe¡¯s a cult leader and possibly a murderer who got rid of Peter Kell¡¯s ex-wife, Jocelyn, after seducing him. She¡¯s almost certain her sister has fallen under the same spell and joined what she jokingly calls the ¡°hey hey¡± club. Determined to break free from what she sees as a twisted trap, Devon is on a mission. Simone, meanwhile, is blinded by devotion despite Devon¡¯s repeated warnings. She¡¯s convinced that Kiki is the one person who truly understands her. Even though she keeps certain things hidden, Simone genuinely believes Michaela holds the key to fixing her life. The entire series plays out over Labor Day weekend, forcing both sisters to confront buried childhood traumas. And in the end, Simone makes a life-altering choice¡ªone that shatters Michaela¡¯s carefully constructed world in more ways than one.

Netflix's Sirens ending explained: Why did Peter leave Michaela for Simone? What happened to Devon?

Throughout the series, Simone remains fiercely loyal to Michaela. She follows her advice to the letter, often completing tasks even before being asked. So when Michaela grows suspicious about her husband Peter¡¯s sudden business trip to Japan, she asks Simone to discreetly follow him. Simone, however, fails in her mission and ends up getting caught by Peter. What starts as a confrontation turns unexpectedly intimate, with the two sharing several emotional moments, culminating in a kiss initiated by Peter.

Simone and Peter (Credit: Netflix)

Simone immediately pulls away, making it clear that her loyalty to Michaela is unwavering. She and Peter agree to keep the incident a secret, knowing full well that Michaela would never forgive them even if it was one-sided. Unfortunately, a Vanity Fair photojournalist captures the moment, and the proof lands in Michaela¡¯s hands. Furious, she fires Simone on the spot.

Simone's and Michaela's fallout changes everything

The fallout is brutal. Simone had just turned down a proposal from Ethan, Peter¡¯s best friend, and was preparing to start a fresh chapter in New York, encouraged by none other than Michaela herself. Despite repeatedly trying to explain that Peter had made the move and that she stayed silent to protect Michaela¡¯s marriage, Kiki shows no leniency. She not only cuts Simone off but also arranges for her to return to Buffalo, accusing her of theft to save face, all while hosting a high-profile charity gala.

But Simone proves she learned from the best. She confronts Peter and tells him everything. Peter decides to end his marriage to Michaela, accusing her of controlling his life and alienating him from his children. In a dramatic turn, he finds new Mrs. Kell in Simone.

When Michaela protests, insisting no one else could care for the Kell legacy¡ªespecially the prized aviary¡ªPeter counters that Simone is more than capable. Just like Michaela once replaced Jocelyn, her time is now up, as history repeats itself and the assistant becomes the one taking over.

While this dramatic turn paints Simone as the villain, Sirens slowly unpacks her emotional wounds, starting with the trauma of witnessing her mother¡¯s suicide from the backseat. She¡¯s kind at heart but often makes reckless choices chasing a sense of safety. So when Peter became an escape, she took it¡ªbecause returning to her old life was never on the table.

What happened to Devon and why did she distance herself from Simone?

Simone at the Kells' mansion (Credit: Netflix)

Devon watched her sister unravel in real time, trying desperately to pull her back from what she believed was a cult. Having dropped out of college to raise Simone and later sacrificing her youth to care for their ailing father, Bruce, Devon felt a fierce responsibility. She couldn¡¯t just stand by as Simone slipped further under Michaela¡¯s influence.

When Michaela fires Simone, Devon storms into the charity gala and accuses her of being a cult leader and even a murderer. But Michaela then reveals that Joeclyn is alive, just hidden from public life after a surgery gone wrong. That revelation shakes Devon¡¯s perception. Soon after, she catches Simone with Peter and realizes her sister isn¡¯t brainwashed¡ªshe¡¯s trapped in her past, clinging to the illusion that this new life can somehow make up for everything she lost.

In that moment, Devon chooses to let go. She decides to leave the island with her father and declines a tempting getaway with Ethan¡¯s boat captain, Jordan, even after Bruce assures her he can manage on his own. Underneath her tough, no-nonsense exterior, Devon has given up her best years for her family: first Simone, now Bruce.

She soaks it all in and quietly boards the ferry home, leaving Simone in her glittering new life, one Devon knows could fall apart at any moment.

The heartwarming conversation between Devon and Michaela

Turns out, Michaela ends up on the same ferry to New York. Though she tries to keep a low profile, Devon sits beside her and offers a quiet apology for the accusations she made. What follows is an unexpectedly tender exchange between the two.

When Devon asks what¡¯s next, Michaela admits she doesn¡¯t really know. She then tells Devon to cash the $10,000 check she once gave her to leave the island, since now she¡¯s planning to get her own place¡ª¡°like a grown-up,¡± she says with a shrug. When Devon asks if Simone will be okay with Peter, Michaela simply says, ¡°No,¡± but adds that she managed 15 years with him, implying Simone might survive too.

In that moment, Devon sees Michaela not as the monster she imagined, but as someone deeply flawed and quietly heartbroken. And Michaela, in turn, says Simone isn¡¯t a monster either¡ªjust someone trying to find her place. It¡¯s a rare flash of honesty, revealing that Michaela¡¯s love for Simone was always real.

In the final scene, Simone, dressed like the perfect Mrs. Kell, stands on the edge of the island estate, soaking in the view of a life she believes is finally hers.

In the final moment, we see Simone, dressed up how a Mrs Kell would, admiring the beauty of the island, which she believes now belongs to her.

Will there be a Sirens Season 2?

Will Simone succeed as the new Mrs. Kell? (Credit: Netflix)

First came Joeclyn, then Michaela, and now Simone. The cycle in the Kell world seems endless. Sirens season 2 could explore so much¡ªwhether Simone thrives in her new role, if someone new replaces her in Peter¡¯s life, how Michaela copes with the loss of her place and youth, and whether Devon finally chooses herself. The possibilities are wide open.

But sadly, they might never unfold. Netflix has labelled Sirens a ¡°limited series,¡± which usually means no continuation. Still, if fan demand grows loud enough, there's always a chance we could revisit the tangled world of the Kells.

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