The tango king Harry Koivikko was found dead six years ago in a sleazebag motel, with a knife is his back. The biggest manhunt in the county faded away without results. Jussi Vares gets a phone call from a down-and-out journalist; the informant tells Vares he knows the murderer. Then the journalist disappears without a trace and Vares has to face the biggest challenge of his career. To add insult to the injury, an old acquaintance Veikko Hopea gets his first prison furlough…

In the heat of the night, a man from faraway plays the piano. In the local hillside prison, a bitter double-crossed convict stares at the city life over the roofs. A revenge is brewing in his mind; the blood-thirsty killer prepares his escape. Vares gets a client who needs private investigations. Despite the beautiful wife, Vares smells a rat… In the middle of the summer night, a shot rings out. One life comes to an end and Vares finds changes in his assignment. The clues lead him to first-hand encounters and second-hand bookshops; a visit to the gym reveals a drug-smuggling route from Stockholm… Vares finds himself entangled in hot money and cool silk. In the background slithers a cunning garter snake.

A restaurateur befriends a Syrian refugee who has recently arrived in Finland.