Poland, 1985: Not satisfied with the result of a murder investigation, a young officer in communist Warsaw sets out on his own to discover the truth.

A criminal story set in the 1980s. Robert, a young policeman "out of principle", finds a serial killer targeting gay men. In the course of the investigation, he meets Arek. He decides to use him as an informant, not realizing how much this relationship will affect not only his work, but also his personal life.—G