Detective Kieran Temple is woken by a 4am call from his ex-partner, Mia Burrows. And she's just killed her boyfriend. As Temple is compelled to investigate, he must do so behind the backs of his superiors and his wife.Evidence tells him that she was defending herself against a maniac but Temple senses that she is not telling him everything and learns of a complex and dysfunctional relationship, one that's been manipulated from the start.