Cordelia ia a troubled, damaged soul who is only just recovering after some unnamed trauma; she is an actor rehearsing a play and comes to stay in a creepy London mansion flat occupied by her twin sister Caroline and Caroline’s boyfriend Matt. When they leave her alone there Cordelia strikes up a friendship with Frank the charming, but strange and unreliable young man they can hear practising his cello in the upstairs flat – a relationship which quickly becomes very disturbing.

Two androids are tasked with raising human children on a mysterious virgin planet. As the burgeoning colony of humans threatens to be torn apart by religious differences, the androids learn that controlling the beliefs of humans is a treacherous and difficult task.