The owner of a private merchant bank (General Watson) is found murdered in very 'chilling' circumstances on the eve of a merger - which most of his small committee of trustees were against. The prime suspect appears to be his son, Tony, who's on the committee - and who just so happens to be a client of Esther's.
Esther is adamant that Tony's star chart rules him out as the killer - but can we 'bank' on she and Grad solving the case and finding the real killer?
As another reviewer pointed out on a previous episode, this series has many similar elements to Thames TV's other light-hearted contemporary crime show 'Whodunnit', and none more so than in this particular episode.
This one really does feel like a 'whodunnit' in every sense of word - we have a variety of suspects, each it seems with their own agenda - not to mention a fair few red herrings, and a rather theatrical death.
Michele Dotrice is delightful here as General Watson's young filly Julie - and we get a good cast of character actors, including Peter Jones as the General, plus Peter Egan as his son - also Graham Crowden, and Norman Chappell, who plays the General's steadfast butler.
There's a fun scene with the General and Julie playing a table-top war game, and also a later scene where Esther tries some 'wine psychology' on an unsuspecting Grad! Even the discovery of the corpse itself is treated in quite a light-hearted way, as I mentioned earlier.
As with all the other episodes, it's studio-bound and feels quite stagey, but this for me never really detracts from the enjoyment of the story and what makes this series so good.
A pity this was to be the final episode of this short-lived series - there seemed to be plenty of potential to carry on, judging by the six episodes we have.
But sometimes the best things come in small packages, and that seems to be what we have here with this likable and largely forgotten show.