Three grown siblings must rethink their idea of family when they learn their parents are getting divorced and have their eyes on new partners.

Our story begins with Junior Detective LIN, who has just been put in charge of a case that appears to be a suicide. Most curiously, the crime scene has many features in common with a scene from a Sherlock Holmes novel. Detective Lin quickly discovers that it is a murder case. Meanwhile, a group of young sleuths supports their detective club president GAO’s dream to win a writing contest. The three club members, psychologist ZHONG, social worker WEN, and pharmacist ZHANG, each harbor a hidden secret. GAO could never have expected that he would become implicated as the killer in an actual murder case! As Detective LIN delves deeper into his case, a series of seemingly unrelated events all end up pointing towards the club members.

Mysterious ghosts -- determined to reconnect with the living world -- begin to cross over and disrupt the lives of those they left behind.