The sudden and mysterious demise of his father Phipop leads Pithai to discover that his girlfriend Kamolthip was in fact his father's lover, and therefore a prime suspect in his death. To escape she runs off with another man and Pithai begins to blame Chadathan, her younger sister who has always had a secret crush on him. She soon finds herself in a love trap with Pithai that binds them together, but will they ever be able to escape the cycle of love, revenge, and pain?