May is a prostitute with both a sick mother and son to look after. After being raped and accidentally killed by a group of construction workers, her ghostly self takes over the phone lines to execute revenge.
May Chan
Officer Ma Fai
Linesman Chan Ping
Leung
Kwai
Biu
Kitty
May's mom
Kwai's wife
Kwai's mistress
Woman in bed [cameo]
Man in bed [cameo]
Supt [cameo]
