Black-eyed Susans by Julia Heaberlin is an intelligent thriller, written in language that's rich and beautiful and very, very readable.
The premise is as simple as it is brilliant: a survivor of a brutal serial killer is wondering whether the right man is on death row for the crimes. The themes range from motherhood, through the morality of the death penalty to the fallibility of eye-witness statements.
I appreciate that the author chose not to dwell on the victim's ordeal at the hands of the serial killer. Some things are best left to the imagination. The thriller is all the more thrilling this way.