Testo sul retro della cover:

Avenger X
On the streets late at night, vengeance is his.

A beautiful girl is brutally killed
in a robbery. Her forehead is
branded with an "X", sign of a
master criminal long sought by
police. But the real "Mister X" has
retired, and is unjustly accused
of the murder.
Mister X risks all when he em-
barks on a dangerous adventure
to avenge himself and unmask
the real culprit. He i soon pursued
by both sides of the law - a mer-
ciless crime gang and the Police
Inspector determined to put
Mister X behind bars.
 
Running Time: 90 minutes