Hello Ghost
헬로우 고스트 (original)
After a lonely man’s latest suicide attempt lands him in the hospital, he is followed around by four quirky ghosts who keep him on his toes.
Starring Cha Tae-hyun, Kang Ye-won, Lee Moon-Su, Ko Chang-seok, Jang Young-nam, Bo-geun Cheon, Jeong Gyu-su, Goo Seung-hyun, Ra Mi-ran, Lee Han-wi
Watch "Hello Ghost" on Amazon released in 2010. It's a drama and comedy movie, and has a rating of 7.5 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.