This is quite an interesting yarn about an insurance assessor (Peter Vaughan) sent to look into a large claim after a businessman goes missing. Eventually he discovers it's really a case of murder and his naturally inquisitive, meticulous. nature helps him to investigate - soon he is embroiled in a tale of money, debts and adultery. It's not exactly the stuff of Hercule Poirot, but Vaughan carries it all off well.