Bob Burns is an old-fashioned kind of Scottish sleuth, more interested in catching villains than creeping to get promotion. But, when his enquiries into a brutal and bizarre murder are blocked by his bosses, he wonders if he should risk losing his career by carrying on his investigations? Encouraged by an attractive, though maverick, forensic scientist and assisted by a keener-than-bright young constable, Bob does it his way. The trail leads the trio from Scotland to Mallorca, where intrigue and mayhem mingle with the crowds at a fishermen's fiesta.