A return to the West End stage in the legendary 'whodunnit' play The Moose Trap is seriously jeopardized when Toast reveals the killer's identity in a radio interview. As attendances at the show dwindle, Toast is forced to look elsewhere for employment. When the job of the announcer on a legendary University quiz show becomes available, he is very keen to land the job. But first he will have to impress the show's fearsome (and famously rude) host.