Two high profile victims - a former left-wing radical turned environmental campaigner and a geneticist researching the possibility of inherited memory - are found murdered within 24 hours of each other. Both men have been scalped. Jan Fabel and his murder team have nothing to go on other than a single red hair left as a signature at each scene - each hair cut from the same head at least 20 years previously. Connections begin to appear: a long disbanded terrorist group; a mummified body; and a killer who believes he has been reincarnated to exact a terrible revenge on those who betrayed him in a previous life.