As is usually the case, there's a lot on DI Jack Frost's plate these days. He's been assigned a new officer, DS Terence Reid who has been transferred somewhat abruptly after investigating a university student for selling contraband cigarettes. He has other problems as well, as Frost soon learns, but generally he is a good copper. Their first case is that of a woman, eventually identified as Sylvia Carter, whose remains are found on the railroad tracks after being run over by several trains. She worked for a local sandwich maker and Frost is convinced she was having an affair with someone. Dr. Helena Gibson, a senior surgeon at the local hospital in Denton, goes missing over a weekend. From all accounts she was in on Saturday but didn't show up at a colleague's house for lunch on Sunday.
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