Kirill Andreevich, a young but well-known architect in the city, has settled well in life. His company flourished, his children grew up, his pretty and stupid mistress brought him joy. True, his wife did not want to give him a divorce, and the hope of resolving the problem was fading. And suddenly the wife drowned... The mistress hurried to take the coveted place, but she was killed right on the wedding day, and the architect himself was imprisoned as the main suspect... An evil fate hung over his house, no less! Who is taking revenge on Kirill and for what? Or is it not about revenge at all? Only two people know about this: the killer and the detective...