Not Dead Enough

Detective Superintendent Roy Grace thinks he's found a serial killer, but not everything is as it seems in Not Dead Enough, by award-winning crime author Peter James. Now a major ITV series, Grace, adapted for television by screenwriter Russell Lewis and starring John Simm.
A beautiful socialite is dead. Roy Grace's leading suspect, her husband, was sixty miles away when she died, but all other evidence points to him. Has someone stolen his identity or is he simply a very clever liar?
Grace's investigation, and his budding new relationship, are derailed after a reported sighting of his wife, Sandy, who has been missing for nine years. Grace desperately tries to cast light on the truth in both cases as his emotional turmoil - and the body count - grows...