The chain of chance - Stanislaw Lem

Written in the style of a detective novel, The Chain of Chance is classic Lem: a combination of action, hard science, and philosophical investigation. An ex-astronaut is hired to look into the death of several wealthy businessmen. The authorities suspect a pattern, but neither the police nor a supercomputer enlisted for the investigation can crack the case.

On a trail leading across Europe, the ex-astronaut barely escapes numerous attempts on his life. Having set himself up as a potential victim, he realizes that he may now be the target of a conspiracy--and that the conspiracy is not the work of a criminal mind, but a manifestation of the laws of nature. Certain patterns have begun to emerge from the chaos of modern society. Some of those patterns can be fatal. . .