On borrowed crime / Kate Young.

Series numeration from Goodreads.com.

"Lyla Moody loves her sleepy little town of Sweet Mountain, Georgia. She likes her job as receptionist for her uncle's private investigative firm, her fellow true crime obsessed Jane Doe members are the friends she's always wanted, and her parents just celebrated their fiftieth wedding anniversary. But recently, with her best friend Melanie on vacation, and her ex-boyfriend and horrible cousin becoming an item and moving in next door to her, her idyllic life is on the fritz. The cherry on top of it all is finding Carol, a member of the club, dead and shoved into a suitcase, left at Lyla's front door. Unusual circumstances notwithstanding, with Carol's heart condition, the coroner rules Carol's death undetermined. But when they discover the suitcase belongs to Melanie, who had returned from her vacation the following morning, Sweet Mountain police begin to suspect Lyla's best friend. Determined that police are following the wrong trail, to clear her friend's name, and to not allow Carol become one of the club's studied cold cases, Lyla begins to seek out the real killer. That is, until she becomes the one sought after. Now, finding the truth could turn her into the killer's next plot twist, unless she wins the game of cat and mouse"--