The Delinquent

Eighteen year old Shen Chang (Wang Chung) hails from a poor family and has no opportunity to attend school. His only friend in the world seems to be Huang Lan (Lily Li), a female worker.

Lan Chen-chuan (Tung Lin) and his gangsters are trying to tempt Shen to join their gang because they're plotting to rob the Yung Chi Warehouse where his father works as a watchman. Shen refuses and is beaten up by the thugs.

Lan Chen-chuan gets sexpot Teng Fen-ni (Betty Pei Ti) to convince Shen to help the gang by tricking his father into leaving the warehouse at the planned time of the robbery. Shen's father refuses to leave however, as there is no one that can cover for him and Shen is forced to do something at the 11th hour to save his father's life. His efforts are in vain however as the gangsters attack him severely, plunder the warehouse, and kill his father. Things come to a head when Shen sneaks out of the hospital and confronts the gang.