The life of Lulu Lewis, a retired police detective, took an unforgettable turn when Conrad first introduced himself to her. Unforgettable because: a) Conrad is a special cat. b) Special because he told her so. Yes, that's right, he can talk. For obvious reasons, this ability remains a closely guarded secret while they live together on her canal boat, The Lark. Visiting an old friend in Manchester, the pair stumble across a chilling news report about a trail of bodies found across the city that echo a string of cold case murders from Lulu's past in London. Joining forces with the local police, the pair must use every ounce of their intuition in order to find a connection between the seemingly random killings - and track down a ruthless murderer...