The host of a whodunit radio show finds himself involved in his own mystery when he awakens to find a woman with a knife in her back in his bedroom. The host of a whodunit radio show finds himself involved in his own mystery when he awakens to find a woman with a knife in her back in his bedroom. The host of a whodunit radio show finds himself involved in his own mystery when he awakens to find a woman with a knife in her back in his bedroom. The host of a whodunit radio show finds himself involved in his own mystery when he awakens to find a woman with a knife in her back in his bedroom.