The Cruel Embrace (1987)

Ludovic, the fruit of a brutal and frustrating first love, is hated by his young mother Nicole. He spends the first five years of this life locked in an attic. Nicole marries Micho, an older man, who attempts to make Ludo lead a normal life. But Ludo's relationship with his mother doesn't improve. Haunted by the memories of her rape, drowning in alcoholism and contemptuous of her husband, the young woman has her son committed to an insane asylum. Ludovic, however, never stops thinking about his mother, who he adores as much as he fears.