Three harassing letters are placed on the doormat of the Norwegian Johan Dahl’s townhouse in London. The letters reveal that his marriage is built on a lie. When a woman is found hanged from a bridge near his home, he is arrested and charged with murder.

The London police believe they have incriminating evidence. Johan needs help from the outside, and his childhood friend, the Norwegian police investigator Harinder Singh, is called in.

The search for the truth leads Harinder into a web of betrayal, lies, and infidelity in the big city. At the same time, he is confronted with uncomfortable connections to his own past and to the woman both he and Johan once loved.