A new wagtastic mystery. Monty, the adorable, food-obsessed Golden Retriever will do anything for his owner, Detective Constable Rose Sidebottom. Of course, as these things go, Monty is no ordinary dog and Rose is no ordinary hooman. Monty's super-smart nose and network of unique informers, and Rose's uncanny ability to spot liars make them a funny and formidable team. When Rose is on sick leave a stranger begs for their help to find a missing person. The case soon becomes a murder investigation, and Rose's boss warns her not to interfere. But, when dogs start disappearing too, Monty and Rose have no choice but to track down the culprits by doing what they do best - together.