Kostajan menneisyys was released in the year 1972。Kostajan menneisyys is also called as Verano para matar, Un, Ricatto alla mala, Meurtres au soleil, Kosto mafialle, Hämnd på maffian, Summertime Killer。

A six-year-old boy witnesses mobsters beat his father to death. Twenty years later, the now-grown boy begins to track down and eliminate the men who did it, determined to wipe out the entire gang. A police detective investigating the killings, and the Mafia boss who heads the gang, are just as determined to stop him.

Kostajan menneisyys actors and actresses include Claudine Auger, Karl Malden, Olivia Hussey。