Although not a regular viewer of this series I have enjoyed the episodes I have seen, but this was one of the weaker efforts. Attempts at comedy (a solicitor in a wardrobe) fell flat and a number of plot lines were either unexplained or overexplained. A coded message was solved in seconds despite a few false starts and with a breathtaking grasp of the cypher by all present. A swarm of bees was introduced at a funeral as if it were relevant but not followed up. Two characters were stung by bees for no reason, including one wearing a beekeeper's bee-proof suit, and the killer carried a bee-smoker and wore the bee-suit but was instantly recognised by the victim. Why would you wear a cumbersome disguise and carry a prop that would leave a smell on you if you intend to kill the only witness? I initially thought the smoker was to cover the smell of cigarettes - it possibly was - but if this was mentioned I missed it and there were cigarettes in the room anyway.
A shame because the show gives opportunities to actors on both trajectories and is pleasant, harmless fun. I hope this was a rare lapse rather than an indication that the writers have become stale.