In 1978 in Hong Kong, a murder occurs. Eight years after, on a Macao shore, children uncover the severed hands of a fresh victim. Even a squadron of happygolucky cops investigate, and suspicion falls upon Wong Chi Hang, also the owner. The hands belong for their restaurant prior owner's mum. He and his family have disappeared. Staff in the restaurant are still go missing. And, Wong can't produce a bill of salebut there's no evidence. Law enforcement arrest Wong and attempt to torture him into a confession. Can they allow him talk? And what exactly was in those beef bao?