The twenty-fifth case for"Nameless" begins with an attractive from San Francisco Assistant District Attorney Patrick Dixon. In exchange for driving Dixon's wife and son to the remote High Sierra lake where the family has a summer cottage",Nameless" will be given a weeks free use of a neighboring cabin. Emotionally exhausted from the events surrounding his partner's suicide, he readily accepts.Unknown to either man, one of the other visitors to Deep Mountain Lake is Donald Michael Latimer, a recently-paroled explosives expert with a warped plan for revenge against those who sent him to prison. His viciously ingenious boobytraps have already claimed the lives of two of his intended victims. His next targets are Pat Dixon, then Dixon's twelve-year-old son, and finally "Nameless" himself.