Lautlos wie sein Schatten (published in 1959) is a detective fiction novel written by Frank Arnau.

When James Baldon comes home from a party late at night, he is not able to open the front door of his apartment.

The reason: a dead man is blocking his entrance.

David Brewer, head of the Homicide Squad, starts the investigation.

When it is discovered that the body was moved after being shot, everybody in the building turns out to have an alibi.