Hello Ghost (2010)

Sang Man attempts to commit suicide, but he keeps failing every time. In one of his suicidal attempts, he overdoses by medicine and his heart stops. However, he is transported to the hospital and is saved. When he wakes up, he starts seeing ghosts. He visits a shaman to make those ghosts leave him, but he is told that the ghosts will not leave and they will not let him commit suicide either. Sang Man learns that if he helps the ghosts fulfil their unrealized dreams, he would get them to leave him alone and he then can commit suicide. Meanwhile, Sang Man meets a nurse Jung Yun Soo at the hospital and quickly falls in love. But the ghosts start taking over Sang Man's body.