Welcome to the Blumhouse: Nocturne/Evil Eye review – dark desires

Twin sisters vie for musical supremacy and an arranged marriage gets the supernatural treatment in the horror company's collaborations with Amazon

Kicking off the second batch of Welcome to the Blumhouse, the horror outfit's collaboration with Amazon, Nocturne () is played firmly in the key of Black Swan, and it is a confident interpretation. The setting isn't ballet, but an elite music academy where out-of-sorts pianist Juliet (Sydney Sweeney) looks sure to be eclipsed by her outgoing twin (Madison Iseman) in a competition to decide the school's year-end concerto soloist. Then she stumbles on a notebook - covered in esoteric scrawls depicting a satanic pact - that belonged to the competition's original winner, who recently jumped off her balcony. Juliet is suddenly fired up to take on Saint-Saens' Piano Concerto No 2, aiming to gazump her sister, who is playing the same piece. It's the most sanity-threatening keyboard pick since Rachmaninov's Third in Shine.