Dr. Kate Turner is happy with her new life in Oak Falls in upstate New York. Working as a relief veterinarian at a small house-call practice, she truly enjoys helping her patients.

All that changes when client Claire Birnham is found dead, an apparent suicide. A talented artist, Claire had everything to live for: new job, Manhattan apartment, her cairn terrier, Toto. As feisty as the Wizard of Oz's Toto, he and Claire were devoted to each other. Kate can't imagine Claire simply abandoning her pet. Was her death murder?

Questions end when police arrest young kennel helper Eugene. The fragile friendship between Kate and police officer Luke Gianetti frays as she ignores his advice and keeps asking questions. House calls provide gossip and clues, some helpful, some not so much, as she treats her animal patients. Did Claire's recent insurance windfall prove too tempting for her hard-working and hard-drinking mother? What does trouble in the art gallery where Claire worked signal? How huge a grudge did heavy metal rocker A. J. hold against high school sweetheart Claire after she dumped him? Was Claire a threat to A. J.'s rich new girl?

Dr. Kate mixes real medicine with murder as she risks her life over Claire's death, aided by insights from a former fire investigator, a.k.a. her Gramps. Unleashed is just as irresistible as Dr. Kate's first adventure, Muzzled.