Four friends, working in a haunted house ride at a night market, unintentionally cause the death of an elderly man with heart disease through fright. They decide to bury his body within the haunted house, which turns out to be beneficial for the attraction... at least for a little while.

After repeatedly failing their missions, Detectives Bene, Boris, Jegel, and Oki are given one last chance: to go undercover in a nursing home in search of a fugitive wanted for the murder of the mayor’s child.