Entertaining Mr. Sloane (1970)

A woman and her repressed brother encounter a man lounging on a gravestone and offer him a room in their home. Unbeknownst to them, their aging father identifies this stranger as the murderer of his former employer. As dark secrets resurface, the siblings see an opportunity to manipulate the situation. They propose a deal that could grant forgiveness for past transgressions, but the stakes are high, and tensions rise as they navigate desire, deception, and familial loyalty.