Loveaholic (2006)

Rong, a comedy screenwriter, finds out his wife, Daeng, has had an affair with a physician. Rong's and Daeng's relationship had grown routine and boring, which was why Daeng had the affair. Rong quarrels with Daeng, who angrily drives away in her car. Later, Rong is told that his wife is dead. Grieving, he blames himself for her death. However, Rong notices that many things in the house are being moved around, and he starts to think that perhaps Daeng is not dead.