The "walk in" of the title refers to one person allowing another's soul to take possession of his body at the time of death.

The second spin-off film from the Young and Dangerous series.

A suspect is killed while the ICAC team is investigating illegal soccer gambling in Hong Kong.

Tales of the supernatural include encounters with ghosts and a man's communication with his dead wife.

Zhen Huan, a 17-year-old innocent introduced into the imperial court as the latest concubine of Emperor Yong Zheng. Her dreams of a new life of love and prosperity are swiftly dashed as she enters a dog-eat-dog world of treachery and corruption.