On the night of their high school graduation, three delinquents decide to exchange their darkest, most unspeakable secret.

According to the biggest dating website’s research, teacher is among the top five professions most likely to cheat, and their students’ parents are among the people whom they cheat with….

After finding an odd envelope, Policeman Ming-han’s life takes a spooky turn: He’s now wed to a ghost husband, and they must solve a crime together.