A Quiet Place to Kill

Helen (Carroll Baker) is a race-car driver whose luck has run out, so when her ex-husband's wife invites her to stay at their villa, she goes. Constance (Anna Proclemer) welcomes her warmly, and the two women find they share a dislike of the man between them: Maurice (Jean Sorel). Umberto Lenzi sets the two of them under one roof with a plan to kill him, and Helen's life is the price if it goes wrong.