Tana French is one of my favorite authors. To date, all six of her books have been different. Instead of a formulaic approach to the Dublin Murder Squad, each has had its own unique world and feel. And the solve of the case is usually the least enthralling part of the read. (view spoiler)[ In The Trespasser, the solve IS the book. 
 Up until the last third of the book, it was an endless loop of what if's and no evidence or break throughs. Along with this is Detective Antoinette Conway's crippling self-sabotage as she imagines the entire force is against her and looking for a way to boot her from the department. 
 It isn't until the last third of the book that we get any answers and therefore start to get somewhere with the story. It was a pretty great final stretch; I only wish it had started sooner. French usually has great pacing in her book, so I'm not sure why most of this one was stalled out. (hide spoiler)] 
 Hopefully those that start the book will actually finish it. The payoff is worth it. 
 3.5 stars