I Can't Get No Satisfaxion - S1.E5

Tests from the autopsy proves Bruce regularly abused cocaine, and Dianne looses hope of ever finding any of the vanished money. However George and Felicity admit that they have handled Bruce's insurance money unsufficiently, and they fire their accountant. The technical investigations proves that he was not killed by his secretary, Joanna, as her bullet hit nothing but the wall. After some comic setbacks the police succeeds in tracing the person who faxes death threats to Dianne.