Sudden wealth transforms Mr Digby into a new man - and Thelma can't wait for the return of the old one.

Thelma suspects there is something wrong when Mr Digby starts behaving strangely - or, rather, more strangely than usual...

The highly incompetent Digby and his ever-faithful secretary Thelma find their 9-5 `domestic' harmony threatened when a new manager arrives - who looks like sweeping them clean out of Rid-o-Rat and straight into the nearest labour exchange.