Soo Jin and Hyun Soo are a newlywed couple. Their happy married life soon turns into a nightmare because Hyun Soo suddenly begins to behave abnormally during his sleep. What starts out as some light sleep-talking soon escalates to unexpectedly grotesque behaviour. They consult a sleep clinic without success and as his nightmarish behaviour escalates, they desperately seek help from a shaman. (Source: IMDb, Wikipedia)