This film is adapted from the 2010 South Korean blockbuster and tear-jerking comedy Hello Ghost. A lonely delivery man, A-wei, tries to commit suicide multiple times but fails no matter what he does. Through these failed attempts, he meets four ghosts — a smoker, a crier, a heartbroken ghost, and a mischievous ghost. In order for him to die, he learns that he has to first help these four ghosts fulfill their final wishes. In the process of doing so, A-wei befriends these four ghosts and overcomes his low self-esteem to step out of his comfort zone and experience many firsts in life.
Ah-lun is struck dead by lightning, and when he goes to the underworld, he has no memory of his previous life. After training, Ah-lun takes on the job of god of love. He teams up with Pinky and binds countless men and women together with red strings while trying to find out what happened to him with the strong deja vu he has. Day by day, Ah-lun finds out that his biggest task is to tie this red string on the love of his life Xiao-mi with someone else and that will separate them for eternity.