Begins as a parody of the Raymond Chandler school of detective fiction, but ultimately transforms the question of identity into a metaphysical one. A Shamus who may not be a sham, Roger Ackroyd is hired to investigate a case of writer's block by sports writer Oscar Plante. Over the course of five years, Ackroyd's personality begins to merge with his clients' as he acquires his ex-wife, his mistress and, eventually, his craft. Here, Feiffer uses the detective genre to further his investigations into human neuroses.