Ophélia

Ophélia is a movie starring Alida Valli, Claude Cerval, and André Jocelyn. After the death of his father, the weirdo Yvan Lesurf believes his mother Claudia Lesurf and his uncle Adrien Lesurf have poisoned him since they got married...
A young man becomes enraged when his mother remarries his wealthy uncle after his father dies.