Episode 4 of Sirens, aptly titled “Monster”, opens with a memory. A quieter moment from Simone’s past resurfaces: her first interview with Michaela. The memory, though brief, lays bare the undeniable chemistry that made Michaela select Simone in the first place. There was a quiet eagerness in Simone’s eyes, and something like recognition in Michaela’s gaze. The flashback offers a stark contrast to the emotional volatility of the present, where trust has curdled into suspicion and intimacy has turned to power play.
Simone’s current reality is much messier. Her emotional life reaches a new peak when Ethan proposes. The moment should have been tender, but it arrives too fast, too loaded. Simone says no. Her refusal is not cruel, but it’s firm—and it sends a ripple through both their lives. That same day, during a small family gathering, her father, Bruce, mistakes Michaela for his deceased wife. What might have been a touching reunion turns strange and disorienting, especially for Simone. The awkwardness thickens until she has no choice but to walk away, heart pounding and mind racing. In this moment, we see Simone unraveling, unsure of her place in the world, her family, or even her own story.
Michaela, meanwhile, continues her quiet descent into a world of secrets and lies. While reviewing Peter’s phone, she finds a call log to an unknown number. Her instincts flare. A little digging uncovers the truth—Peter has children from a previous relationship he never disclosed. The revelation crashes down like a wave, but Michaela doesn’t scream or panic. Instead, she becomes sharper. Colder. She confronts Peter in the night, demanding clarity, but his excuses and deflections only fuel her fury. Their marriage, already showing cracks, begins to fracture for real.
Devon spends much of the episode trying to reconnect. The emotional distance between her and Simone grows more obvious, and Devon tries to bridge it by appealing to shared responsibility—specifically their father’s declining health. She urges Simone to step up, to be present, to stop running. But Simone, wrapped up in her grief and guilt, reacts defensively. Their argument is raw, layered with old resentments and buried wounds. What starts as a call for support becomes another wedge driven between the sisters.
What makes “Monster” particularly haunting is how well it illustrates the masks its characters wear. Michaela plays the perfect wife, while plotting to catch Peter in lies. Simone wears the veneer of composure, while reeling from rejection and unresolved trauma. Devon, usually stoic, is openly grasping for connection. All three women are fighting to maintain control, even as they feel it slipping away. There’s a symbolic moment where Simone stands alone, staring at her reflection, almost daring it to hold her gaze. That quiet defiance, even in the face of chaos, is part of what makes Sirens so compelling.
The confrontations in this episode hit hard. Simone finally ends things with Ethan in a more final, deliberate way. She apologizes, but she does not bend. Michaela confronts Peter with the full weight of her discoveries, daring him to tell her who he really is. And Devon, fed up with emotional negligence, tells Simone that she’s tired of being the only one who cares enough to show up. Each moment hits with surgical precision, peeling back yet another layer from each character.
Episode 4 serves as the perfect storm’s prelude. The title “Monster” is not just a reference to any one character, but to the emotional beasts each of them are hiding. Michaela’s obsession with control, Peter’s deceit, Simone’s guilt, Devon’s desperation—these are not traits they can continue to suppress. The monster is not one person. It’s what each of them becomes under pressure.
The writing remains sharp, with dialogue that feels both intimate and loaded. The direction lingers just long enough on silent glances and moments of hesitation, making viewers feel like they’re eavesdropping on secrets they were never meant to hear.
By the end of this episode, no one is left unscathed. Every major relationship is altered, every emotional fault line exposed. As the characters step closer to the season finale, they are more vulnerable—and more dangerous—than ever.
