Someone is leaving tracks in the snow around The Black Hill Hotel and no one can work out why. Inspector Colin Knowles is called in when one of the guests has their wallet stolen in the middle of night. Knowles is attacked and left for dead in a snowy field, but is rescued by his favourite dog, Bingo the retriever, and his owner Adelaide Hills. Then a body is found in a snowdrift and Knowles realises that at least one person in the hotel has a lot to hide