Part OneSeries Episode Number: 570
World Premiere: Mon 1 Mar 1982 - 6:56pm GMT [BBC One: Not Wales] (United Kingdom)
First Broadcast: Sun 22 May 1983 - 11:00pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 56 seconds
9.90 Million (UK)
Chart Position: 57 () (UK)
Recorded on Tue 20 Oct 1981 in Television Centre 3
A murder is committed in Cranleigh Hall. The Cranleighs ask the Doctor to play cricket and then join them for a masked ball, enabling the killer to hide in plain sight.