Professor Brian Henderson has two jobs: a reluctant landlord and head of the Butterfly Weaponisation Division at the Eden Project. His tenants have leaking pipes and there is a terrible smell. When his research team find a crossword in the DNA of the Black Argyle butterfly, things go terribly wrong. Meanwhile, Brian's tenants cannot hear anything over the smell.

With Dave Waller, Richard Soames, Rhiannon Vivian, Jonathan Monkhouse, Katy Schutte & Tony Harris

This destination suggested by @troddenBratt