When DI Barton is asked to investigate a seemingly innocuous fire that kills, he believes it's either children fooling around or a worrying racially-motivated crime. As he delves deeper into the case, he soon realises that there is a history of similar blazes spread out over many years, all within a close area. An idea suggested by pathologist Mortis makes Barton suspect he has the arsonist's motives wrong. When a night worker comes forward with a tip, Barton narrows down the suspects. But with all of them acting suspiciously, he knows for sure that one or more of them must be lying. And when a huge house blaze shocks everyone, Barton fears the killer has lost all control."--Provided by publisher.