Rookie detective Allison Doyle, one of only a handful of women on the police force in this small Texas town, is out to prove herself. So, she fears it doesn't bode well for her future as a detective when she fails to catch all the clues of a robbery in progress and finds herself facing a tweaker with a gun. Allison gets the situation under control and apprehends the perp with minor assist from a handsome man in a suit who turns out to be Special Agent Mark Wolfe, an FBI profiler.

Mark is in town because he believes a murder under investigation is the work of a serial killer he's been tracking for years. Allison isn't on the case but she thinks Mark's instincts might be right and starts working the case on her own. She makes a connection to a case that might be related. Soon, the police and FBI, with the help with the Tracers at the Delphi Center, are on the hunt for a serial killer who, if he sticks to pattern, will kill again soon. Complicating issues is Allison's attraction to Mark and his determination to ignore the sparks.

TWISTED is an excellent addition to the Tracers' series. The police procedural and forensic aspects of the story are fascinating and compelling. The whodunit mystery kept me guessing until the very end. Allison, a woman in a male-dominated profession, is confident, smart, and courageous. Mark is a complicated man who struggles with feeling tainted by all the ugliness he's seen in the world. They are well matched professionally and personally. TWISTED works well as a stand-alone story but it's always fun to revisit the familiar team at the Delphi Center.