Lakeside Murders

The body of a murdered programmer is found in the control centre of the Tampere tramway. The people in the department seem to have all sorts of secrets, and one seems particularly guilty. But Koskinen thinks his guilt is all too obvious.

In the middle of the summer holidays, the body of a drowned man with ligature marks on his wrists is recovered from Tammerkoski. The investigation by Koskinen's team is further strained by the death of a dubious music manager and the mysterious Carl Friedrich.