A criminal story set in the 1980s. Robert, a young policeman "out of principle", finds a serial gay killer. In the course of the investigation, he meets Arek. She decides to use him as an informant, not realizing how much this relationship will affect not only his work, but also his personal life.
三年前，他因为没能逮捕一名神秘连环杀手而离职求去。现在，一桩新的伦敦命案则驱使这名警探重出江湖，挺身缉凶。
