Implicated in another murder, crime reporter Quinn, of the London Morning Post, is impelled to search for proof that Annette Lindon is not guilty of the death of Charles Graham. His trail, counter to Det. Supt. Mullett's, takes in the regulars at a pub, the circumstances promoting Graham's unsuccessful disappearance and his relations with other women, fails to prevent another killing- and winds up to clear Annette and catch the almost unnoticed criminal. Diversionary tactics here.