Motel Cactus consists of four episodes, all of which take place in Room 407 of Motel Cactus, a love hotel in Seoul: (1.) A girl celebrates her birthday with her boyfriend, because it is the only place she feels entirely secure with him. (2.) A student has rented room 407 for several hours to shoot a scene with a girl for his video film, a college project. (3.) A salesman meets a woman in a bar. Both very drunk, they arrive in room 407. Afterwards he is back in the room, alone. (4.) He is soon joined by his old love from his college days. Both are vaguely hoping to rekindle their old relationship.