And a lemon unwrapping a lemon juice bottle in a locked room.
The Sun
Staff are flummoxed over the escape of a dangerous patient who appears to have disappeared from a locked room.
The Sun
A casting couch can only operate in a locked room.
Times, Sunday Times
We were five in a locked room about ten feet square.
Christianity Today
It was the perfect crime; a classic 'locked room' mystery, which still remains unsolved.
The Times Literary Supplement