Almost a year after the doorstep murder of media celebrity, Cathy Sphinx, the police are no closer to solving the crime, and the murderer always one step ahead. As they broaden their net, members of Kensington CID from London, visit Poole in Dorset, to question 7 individuals, whose descriptions are similar to those given by members of the public, who were close to the scene of the crime.
With Kensington CID in the area, Eddie Taylor quickly moves out of his apartment, selling a number of unwanted items, to lighten his load, including an answer-phone, which, in his haste, he fails to check for any calls.
Temporarily unemployed, Izzy Daniels, buys the answer-phone from a used goods shop, as a means of recording messages from prospective employers. But when she plugs in the machine to set it up, it plays a recording of a woman being murdered.
Izzy, with assistance of musician, Martin Johnson, her landlord and friend, enhance the recording, to find that the murder occurred less than 24 hours earlier.
Setting out to find the previous owner of the machine with the view of handing it back, they become involved with the local Mafia underworld, in which Taylor, a highly-paid hit-man, is an integral part.
Despite both Poole and Kensington police involvement, Daniels and Johnson are sucked into a world of crooked dealings, drugs, and pornography.
After Taylor murders Daniels' new boyfriend, she follows him to the Canary Islands to confront the man who has robbed her of her lover, and to try and discover the identity of the mysterious 'Taurus,' instigator of the underworld 'hits.'
But in London, Scotland Yard have charged an innocent man with Cathy Sphinx' murder, so Daniels has to try and set the records straight.