This taut psychological thriller begins when Karen and her nine-year- old daughter, Alice, pick up Rex from a ten-year stint in prison for murder. Flash back to the sultry summer in 1990s London when Karen, a straight-A student on the verge of college graduation, first meets the exotic, flamboyant Biba and joins her louche life in a crumbling mansion in Highgate. She begins a relationship with Biba's enigmatic and protective older brother, Rex, and falls into a blissful rhythm of sex, alcohol, and endless summer nights. Naïvely, Karen assumes her newfound happiness will last forever. But Biba and Rex have a complicated family history --- one of abandonment, suicide, and crippling guilt-and Karen's summer of freedom is about to end in blood.
When old ghosts come back to destroy the life it has taken Karen a decade to build, she has everything to lose. She will do whatever it takes to protect her family and keep her secret.