Peter is dating Alice, but he soon discovers that she is cheating on him with Jerry. Feeling heartbroken, Peter seeks advice from his friend Lucial, who suggests using demonic powers to get revenge. Peter summons a demon and makes a deal to curse Alice and Jerry for betraying him. However, as the curse unfolds, Peter realizes the consequences of his actions and the darkness that comes with seeking revenge. In the end, Peter learns that cheating and betrayal only lead to more pain and suffering.