The stabbing deaths of a fencing teacher and his elderly neighbor cast suspicion on an alleged gold digger, an estranged wife, her lover and others.

When Feride surprisingly goes to the police to confess everything, Behzat and his men fear that their role in the incident will be exposed.

Feride testifies in court. Behzat's pursuit of Ercüment leads him and his team from the streets of Ankara to Istanbul.

When a man dying of arsenic poisoning asks for his killer to be found, Behzat and his team begin to investigate a murder that has not yet happened.