Ah Lok (played by Zhou Yingjie), Shi Min (played by Zhou Liqi) and Ali (played by Zhou Ziju) are three young people with special blood types. The three do not know each other, but they have strange inductions, which makes the three feel very uneasy, not knowing what happened. It turns out that the common point of the three is that they have donated blood, and their blood is used to rescue a pair of men and women who died for love. As a result, the man was fortunately pulled back from the line of death, but the woman unfortunately stepped into the gate of hell. The woman's name is Yan Ping (played by Liang Minde). She came to the underworld alone and felt very painful. She actually blamed all the faults on the blood donated by Ah Lok, Shi Min and Ali. Yan Ping waited for an opportunity to approach the three people. She wanted to report their "life-saving grace". Facing the vicious and evil ghosts, can the three escape from death?