What a frustrating book.
I gave it three stars because I did finish it - I did want to know, at least, what had happened to the main character, a professor who gets shot for no apparent reason by a student she had never met, and is essentially blamed by her own university for something that they think, despite the evidence, that she must have been involved in. So the book did hold my interest to keep reading to the end. Some books I just give up on when it doesn't seem to be coming together - this one I held on through because the main character and plot is interesting, and the book does start off strong.
Also, Lori Rader-Day clearly has talent. There's a technique she uses - occasionally annoying, but more often clever - in which the first person switches from one character to another. At first this is extremely confusing, but once you get what she is doing, it's intriguing to see the same situation play out in real time in two different character's heads. She does a good job painting a fairly realistic ultra-rich college in the Chicago suburbs for her setting as well.
OK, now the bad parts. Throughout this novel, something seemed a little "off" and I couldn't quite put my finger on it until the end. What it is, essentially, is that none of the characters seem "real." By that, I mean their motivations are not clear, their words don't seem to be things that normal people would reply, and their attitudes often switch when it's convenient to the plot. The main character - is she a dedicated professor who has been falsely accused of having something to do with her own shooting? Is she a sex-obsessed childlike girl who has contemplated affairs with her students? I could barely figure out her approximate age, let alone her physical capabilities - at one point she can barely walk, and then one hundred pages later she can swim? Her PhD student - is he a shy, confused tutor who has weird obsessions, or is he a confident swaggering student who can hold his own when unraveling mysteries? It's great to have characters have different motivations and interests, but when one contradicts the other within the same person, it becomes unbelievable and contrivances of the plot. It might have worked if we knew anything about the character's pasts, but throughout the novel, we never learn any of that.
Those two characters I still could have handled, but other characters - an intrepid reporter who seems to know everything, a suicide hotline operator who makes wisecracks that others - even in the midst of danger - respond to with weird jokes, and worst of all a character that is so obviously named from a Harlan Coban book series that Rader-Day is trying, I think, to emulate, is so distracting as to take you entirely out of the novel. There are more minor distractions that take you out of the plot as well - the professor repeatedly calling her dissertation a "book" or a "novel" a particularly galling one. Nobody in college refers to their dissertation like that.
The plot has a similar problem. Rader-Day clearly knows where she wants the plot to go, but has to take time getting there, and in doing so, the plot speeds up and then slows way down. Characters will learn something and then seem to give up out of frustration for a while until being re-motivated by someone else. Once the plot does get going, finally, the end it builds to is so ridiculous as to be laughable. Not the answer to who shot her - that's OK, I guess, but could have been handled better - but the location, on a boat, in which it's not clear whether two characters actually know how to swim but freely get on the boat anyway.
There's a good book in here, it just needs editing and cleaning. Rader-Day has talent and she may find a voice somewhere in between that of Harlan Coben and Gillian Flynn, who I think she is trying to capture here. There's some possibility of that, but she has to write tighter, more focused characters and a cleaner, more straight-ahead plot. Coben gets away with somewhat unbelievable characters because his stories are so clean. Flynn gets away with somewhat unlikable characters because her plots are so focused. But you can't write a mystery with inconsistent characters making their way through a meandering plot and have it work on either level.