Julianne Moore & Milly Alcock Circle Each Other in Netflix’s Posh, Potentially Pointed ‘Sirens’

Sirens Netflix Key Art

When you pair an Oscar winner like Julianne Moore with rising talent like Milly Alcock (“House of the Dragon”), put them in a story from the creator of “Maid,” and have Margot Robbie’s production company behind it, attention gets paid. That’s the setup for “Sirens,” a five-episode limited series landing on Netflix, which looks to mix wealth, unease, and dark humor into a potent cocktail.

“Sirens” makes its debut globally on Thursday, May 22, 2025. The series centers on Moore’s Michaela Kell, a wealthy and possibly dangerous socialite, and Simone (Alcock), a young woman increasingly drawn into Michaela’s orbit, much to the worry of her sister, Devon (Meghann Fahy, “The White Lotus”).

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Set during one intense weekend at the Kells’ swanky island estate, “Sirens” stems from creator Molly Smith Metzler’s own play, “Elemeno Pea,” written during her time at Juilliard. The series aims to dissect ideas of female relationships, power structures, and class divisions, all wrapped in a darkly comedic tone. The pedigree is certainly there, with Nicole Kassell (“Watchmen”) directing the initial episodes.

Rounding out the ensemble are familiar faces like Kevin Bacon, Glenn Howerton (“It’s Always Sunny…”), Bill Camp, and Felix Solis, suggesting a deep bench of talent to fill out this world of privilege and potential peril. Even the trailer makes a specific musical choice, using Doechii’s track “Anxiety,” which notably incorporates elements from Gotye’s massive hit “Somebody That I Used To Know” and Luiz Bonfá’s “Seville.”

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With LuckyChap (Robbie’s company) executive producing alongside Metzler and others, “Sirens” arrives with a certain level of expectation. Whether it fully delivers on its exploration of tricky social themes or leans more into soapy melodrama remains the key question, but the combination of talent in front of and behind the camera makes it one of May’s more notable streaming arrivals.

I'm Noah Masire, News Editor at Memorable TV with a focus on show renewals, cancellations, network ratings and the latest industry trends.