Hook and Lambert investigate a chilling case where the truth might not be all that it seems...Richard Cullis is attacked one night on his way home from a bar. A man with a knife threatens his life if he doesn't promise to cease animal testing at the labs where he is the director of research. He is given two weeks to get results if he wants to live. A company golf tournament has a startling conclusion when Richard collapses after dinner. Murder is suspected, but who administered the poison? Priscilla Godwin, who Richard raped; Ben Paddon, an insider working for an animal rights movement; Richard's wife, Alison, who told her priest that she needed a divorce; or Debbie Young, bitter after Richard was promoted to the role she felt she deserved. DS Hook is called in to sift the truth from the lies.