While sleeping, Tong Xiu Zhi's house caught fire. She wakes up and discovers that she is in the hospital and learns that her beloved boyfriend died in the fire. Unable to accept the truth, the girl committed suicide.

The rest of her family gather in the gallery to decide how to divide the inheritance. But at this time, a beautiful girl appears, which makes others nervous and think.

A series of murders continues to occur in the gallery. Visitors die one by one. What are the secrets behind these murder cases?

Adaptation of the novel "The Murder in Kairotei" by Higashino Keigo (東野圭吾).