Doubting Thomas is a crime thriller set in the hot, humid streets of Houston, a city with a past even more tumultuous than its protagonist, Thomas Sorensen. A botched murder investigation years ago has cost Sorensen his badge, his family, and his honor, as he spends most of his morning drinking as soon as the day breaks and speeding through the city in search of everything he's lost. His best friend and ex-partner, Mike McCready, has faith in him, though, and when a random crime turns suspiciously familiar, McCready digs up Sorensen from the sodden rut into which he's submerged himself to ask for help. A serial rapist and murderer is once again on the loose, targeting young boys and hiding among back alleys. The crimes are similar to those of five years before, even though the perpetrator is allegedly behind bars. McCready and Sorensen get to work dusting off the old case files and interviewing new suspects. Is it a copycat crime? Or is Sorensen's dismissed old hunch right after all? The race is on as Sorensen and McCready hunt to find the killer before he strikes again, and the plot winds itself through Houston's gritty highways and chi-chi neighborhoods alike to find that no one is truly safe. Despite the heat and the ticking clock, as the body count rises, so does Sorensen's hope for redemption-provided he can stay sober, and alive.