In order to find his wife who had been toyed with by gigolos, one man is left with no other choice than to become a gigolo himself.

Room 503's secret that is more pleasant if you come alone. Kyung-sook inherits a motel from her mother. In that motel with a strange atmosphere, when it's Friday and the clock strikes two in the afternoon, a middle-aged man, Soo-min, and a 'plumber', seem to compete looking for room 503.