going straight S1 E5 going going gone

Fletch is well-regarded at the hotel, though he is not too well off as his wages go on repaying Ingrid and Godber, now engaged, for loans. An old lady called Mrs. Appleby comes to the hotel with some valuable jewels. Fletch also recognizes another guest, Worm Wellings, known for operating a scam with an old lady accomplice whereby he steals the lady's jewels, which are paste, but they claim on the insurance that they are expensive. Sure enough the jewels disappear but Mrs. Appleby is not a crook, she is a regular guest at the hotel. Fletch feels he will be blamed for the robbery but Wellings returns the jewels, claiming that Fletch has made him see the light. Actually it has more to do with the jewels being fakes.