An English rose garden on a summer´s day. A small boy watches withinterest as his great-aunt cuts the deadheads off the rosebushes witha sharp knife. What could be more peaceful, more harmless? YoungPatrick grows up to be a calm, pleasant man, with a good job, a wifeand two children, and the best rose garden for miles around. Whensomebody tells the police that Patrick Aldermann is killing people,Chief Superintendent Dalziel thinks it´s probably all nonsense. ButInspector Pascoe is not so sure . . .