Jussi Vares falls in love with a beautiful brunette - only to lose her in a horrible way. After dating Sole a few weeks, her body is found in a bird-watching tower. The investigations come to a standstill, until Vares promises to solve a mystery of messy denunciation letters. Before the letters reveal their secret, a lot of things happen. A gun-for-hire, Stahanov, gets an assignment. Sole's brother finds his wife in the arms of a wrong man and goes on a rampage, accompanied by a black cat. In the end the clues lead to a familiar person and more death in unavoidable