Mars is a desolate world. Largely forgotten by Earth, the planet remains helpless in the stranglehold of Arnie Kott, who as boss of the plumbers' union has a monopoly over the vital water supply.

Arnie Kott is obsessed by the past; the native Bleekmen, poverty-stricken wanderers, can see into the future; while to Manfred, an autistic boy, time apparently stops. When one of the colonists, Norbert Steiner, commits suicide, the repercussions are startling and bizarre.