From the description:
"Ignatius Perrish spent the night drunk and doing terrible things. He woke up the next morning with a thunderous hangover, a raging headache . . . and a pair of horns growing from his temples.
At first Ig thought the horns were a hallucination, the product of a mind damaged by rage and grief. He had spent the last year in a lonely, private purgatory, following the death of his beloved, Merrin Williams, who was raped and murdered under inexplicable circumstances. A mental breakdown would have been the most natural thing in the world. But there was nothing natural about the horns, which were all too real.
But Merrin's death damned all that. The only suspect in the crime, Ig was never charged or tried. And he was never cleared. In the court of public opinion in Gideon, New Hampshire, Ig is and always will be guilty because his rich and connected parents pulled strings to make the investigation go away. Nothing Ig can do, nothing he can say, matters."