A trickster-for-hire, known as the Tricky Expert, is hired to ruin the lives of a father and son by making them think that he's a part of the family.
劉德華
Che Man Kit
周星馳
Koo Jing / Che Man Jing
關之琳
Lucy Ching
邱淑貞
Banana Fung
吳孟達
Yan Chi
李子雄
Macky Kam
王晶
Chiu
鮑漢琳
Mr. Ching
程東
Ultimate Tricky Expert
陳曼娜
Yan Chi's Ex-lover
成奎安
Mr. Chu
余慕蓮
Mrs. Chu
