After the death of wealthy patriarch Aristide Leonides, his sprawling, eccentric family falls under suspicion. Although his death first appears natural, it soon becomes clear that it was murder by poisoning. Charles Hayward, who is engaged to Aristide''s granddaughter Sophia, becomes involved in uncovering the truth. As tensions rise within the "crooked" Leonides household — a family twisted by secrets, greed, and old grudges — shocking revelations unfold, leading to a surprising and unsettling conclusion.