• Plot holes

    After the conspirators stab Ratchett, Pierre "cleans up". He puts the blankets back over Ratchett's body, closes Ratchett's door into the passageway outside, locks it, and chains it - all without wearing gloves. Whilst his fingerprints would be expected to be on the doorknob and possibly even the door lock, there would be no reason for his fingerprints to be on the door chain.

  • Revealing mistakes

    After Mr Beddoes stabs Ratchett, the knife is seen to be clean and shiny.