The film co-stars Sally Yeh, Joey Wong, Waise Lee, Carrie Ng and Kent Cheng as the police inspector.

His personal life is imperishable until one day, when Sally decide to fly back to Hong Kong to give Chow an early birthday surprise celebration; thus, spoiling his scheduled time planned for Joey's visit.

He narrowly escapes both his wives' awareness and eventually, he has chosen to follow Sally as she reaches the hospital first before Joey's arrival; avoiding her detection.

Chow once again narrowly escaped being suspected as a bigamist through:(Chi-hung's just in time arrival & purposely by having his face slammed on the birthday cake written with caption of "Joey Love Fat".

This eventually led to his jealous colleague and girlfriend Ka-lai's (Carrie Ng) attention, who thinks that her boyfriend is having an affair with some other women.

Tensions and nervousness begin to lubricate to its peak when every invitations occur in a restaurant with all Chow, his wives, Chi-hung and Ka-lai meeting up together at the same time.

The plan was an epic failure; with Chow being fooled by his pretended to drunk wives and tied up on bed, where both Sally and Joey taking their own sweet time teaching their man a lesson (which includes him being slapped, beaten by thugs, squeezing an orange to his mouth, strips him naked and lighting up the hotel room's fire distinguishing system; making him cold and wet before both of them sadly leaving him for good).

Afraid to lose their lives under the ladies mere clumsiness, the criminals then voluntarily and willingly surrendered themselves to the police, which the coincidental accident has unpredictably eased up the inspector and his team.