Hsiao Yen, a Young Country girl, has come to the city to find work. Her first job is as a maid-servant. She is told by the hunchback servant Lei Kung, that the master of the house is an invalid cripple who never leaves his room. One night, Hsiao Yen's screams bring Ta Tseng, the Chauffeur, to the rescue of Wang Ma, an old servant, who has tried to hang herself...

They are the girls of the night. This is their base of operations, House 102, to be exact. Here they answer calls from the many hotels, ride out there on the back of motorcycles and give their jaded customers what is generally described as a nice time. Hu Ma, manager, transport man, body guard and procurer of House 102 discovers A-chiao at the railway station and is delighted to know she is a virgin...