Corrected entry: The police would have sent out back up after the officer did not report in anything, let alone not show up after being out for hours.
Corrected entry: The rug covering the trap door in the bathroom was always replaced back over the door.
Corrected entry: When Luke and Kate go back into the underground tunnels they head up and into a shop. Luke covers the trap door with what looks like a pretty solid and heavy desk. The mechanic seems to lift the door covered with the desk with ease and manages to hold it up for periods of time to take stabs at them.
Corrected entry: Luke and Kate question why the cop showed up initially without an adress. Calls, especially hang-ups, are traced and an officer is sent to check them out.
Corrected entry: When the police officer is searching the room, he flicks the light switch on and off and there's no power, yet he manages to see a video being played on the television.