Il Terzo Poliziotto by Flann O'Brien

An unreliable young man murders an elderly relative to steal a promised inheritance and then becomes embroiled with two odd country policemen and the eccentric writings of a recondite philosopher whose strange theories about atoms, mirrors and bicycles turn commonsense inside out; the narrative slides between black comedy and uncanny allegory as bizarre conversations, surreal set pieces and an obsession with bicycles lead to a final, disorienting discovery that the story is caught in a looping, metaphysical punishment where identity, guilt and time fold back on themselves.