Owing to a letting old apartment, Sandy (Charlene Choi) and Gill (Gillian Chung) meet and immediately become rivals. The big house is full of traps and they are caged and forced to become disciples of the famous heroine Black Rose (Teresa Mo). Then, they call a taxi driver Jim Lo (Ekin Cheng) for help. Jim enters the strange house after receiving their call but he is caged too. Finally, they have no choice but start the training course of being Black Rose, and in the process, they discover the heartbreaking past of Black Rose…