Reginald Hill's <i>Dalziel and Pascoe</i> detective novels are excellent, and there's one called <i>Deadheads</i>. Here are a couple of synopses from Amazon:<br><br><i>An English rose garden on a summer's day. A small boy watches with interest as his great-aunt cuts the deadheads off the rosebushes with a sharp knife. What could be more peaceful, more harmless? Young Patrick grows up to be a calm, pleasant man, with a good job, a wife and two children, and the best rose garden for miles around. When somebody tells the police that Patrick Aldermann is killing people, Chief Superintendent Dalziel thinks it's probably all nonsense. But Inspector<br>
Pascoe is not so sure . . . --This text refers to the Paperback edition.<br><br>
Synopsis<br>
'Reginald Hill stands head and shoulders above any other writer of homebred crime fiction' Tom Hiney, Observer Life is a bed of roses for Patrick Aldermann when Great Aunt Florence collapses into her Madam Louis Laperrieres and he inherits Rosemont House with its splendid gardens. But when his boss, 'Dandy' Dick Elgood, suggests to Peter Pascoe that Aldermann is a murderer -- then retracts the accusation -- the inspector is left with a thorny problem. By then Police Cadet Singh, Mid-Yorkshire's first Asian copper, had dug up some very interesting information about Patrick's elegant wife Daphne. Superintendent Dalziel, meanwhile, is atttempting to relive the days of Empire with Singh as his tea-wallah.</i>