Goofs

As the lights go out for the 'murder' Miss Murgatroyd is seen in the corner of the room between Mrs Easterbrook and Edmund Swettenham - nowhere near the door she is later said to be behind when it opens, thus she could not have been 'behind the light' as the only witness to 'who was not there'.

We see flowering Daffodils, typically a spring flower. But Edmund Swettenham asks Philippa for some pumpkins and Mrs. Edmund Swettenham comes to bring some apples from her harvest. Both, pumpkins and apples are produced late summer/autumn.

When the corpse of Rudi Scherz is being examined and his mask is pulled off, he shuts his eyes tighter and then relaxes them again.