A young cocaine dealer is gunned down at the door of his apartment on the outskirts of downtown Helsinki. Detective Lieutenant Kari Takamäki and his homicide team find the triggerman-but who was working behind the scenes?

A woman from a neighboring building comes forward with an image of the getaway driver's face burned into her memory. After testifying in the trial, she finds herself the target of an escalating spiral of threats. How much should an ordinary citizen sacrifice for the benefit of society as a whole?