This action-comedy-romance sees Li Mi as a tough chain-smoking, foul-mouthed cab driver who questions all her patrons in search of her fiance, Fang Wen. It’s been four years since he disappeared, but she’s obsessive about finding him, as she receives random letters from him. When two would-be drug dealers and two crooks enter her cab, their interaction sets off kidnapping, a suicide, amnesia, and mistaken identity.