Dr. Poon, a psychiatrist, believes that group sex can heal emotional wounds. He suggests to Susan, a woman struggling after a divorce, that the best way to move on from her ex-husband is to watch him with someone else. Dr. Poon insists on attending the session for his own research. He also pressures his nurse, Siu-ying, to go to these gatherings as his wife. There, Siu-ying meets Lee Keung, another divorced person longing for connection, and he becomes drawn to her. Soon, both Siu-ying and Lee Keung yearn to escape the chaotic group they've become involved with.