Forced to work with a hot headed FBI agent, a rookie detective must stop a deranged serial killer before he kills again. Tanvi Nightingale may be a rookie detective but her instincts about a serial killer hunting in Indianapolis are spot on. Fighting to get a team together, leads her to former FBI profiler, Frank Tench. Even the FBI doubts the facts of this case and sends hotheaded Lucas McGinn to aid in the investigation. Tanvi and Lucas are like oil and water and it’s all Frank can do to keep the two working toward the same goal. As more women go missing and existing cases are connected to theirs, the clues get even harder to read. A Boston native with a dark history, Lucas is used to getting under people’s skin. You could say it was his calling. But Tanvi is different. There’s something about her that brings out the worst in him until a kiss changes everything. With the capture of their man, they think things are looking up. Only to discover there is a serial killer cult in Indianapolis. Lucas and Tanvi are just pawns in their game. Desperate to keep Tanvi and her family safe, Lucas will do anything to end this. But the killers have only just started playing with their newest toys. The closer the investigators get to one another, the angrier the cult leader becomes. Grin is a fast paced enemies to lovers story in the second installment of Angela Breen’s Department of Second Chances Series.