Not the most engrossing book. Interesting story. Gruesome murder done by kind doctor, what's not interesting about that? Unfortunately, the way the story's told is very reporterly with a dash of Occupied Paris thrown in to liven things up, but not in any meaningful way. Do we care that Sartre and Camus were putting on plays? There's either too much of the cultural filler or too little. I don't feel transported. 
 The unanswered questions are ultimately the most interesting. What were Petoit's motivations? What really happened at 21 rue Le Sueur? How many people did Petoit kill? How much of a role did Gestapo and gangsters play? 
 This one takes a little dedication to get through and if you're into true crime it might be worth your time.