Investigation into a case of an arrested gold dealer leads to blackmail of a police officer and a murder case. Behind these is much bigger and dangerous criminals with stolen gold.
A murder in a hallway of a block of flats reveals someone just didn't make it into the flat to warn two young men of danger. This murderer is their close friend of which they are not aware.
A tramp with no name is in police custody. But under an ordinary appearance and a plain life story is calm, coolness, well-hidden intelligence and extraordinary skills. They do not escape the attention of a shrewd detective. . .