Sirens is a psychological drama that follows Devon (Fahy) as she retrieves her sister from the grasp of her cultish, billionaire boss, Michaela (Moore). The five-part series is addictive, not just because of the juicy drama and the dagger-sharp, class-conscious dialogue, but also because of its deep understanding of the contradictions of womanhood. The women are alternately jealous and empathetic, pained and ambitious. And they’re led by a trifecta of compelling performances: it’s a thrill to watch Fahy, Moore, and Alcock go at each other’s throats.