Four childhood friends, founded a company responsible to apologize for the other ... well .. The case turns until, at the place of appointment is the corpse of a hanged woman by a nail that awaits them ... The descent into hell begins for all 4 friends ... The structure of the story has a few unique features, not least because the story seems related to one of the protagonists of the story .. Beyond the style, history if properly fitted, will not give, by cons, little place with twists and surprises .. No real herrings, no questioning of all we understood ... If the overall scheme matures slowly, everything remains relatively linear ... It is also regrettable that the idea from (the company Sorry) is used to fairly final, once launched the thriller side (so the discovery of the body), it really happens in the background ... Otherwise, history will be complex (without being convoluted), dark (backstory involving pedophilia) and quite intense ... The characters are well characterized and it reads avidly enough ... In short, a generally successful thriller, quite human ... a good read .. but nothing a revelation like that ...