Haunting the Baltic nation of Latvia is a creeping monster.
A matchbook cover is found in pursuit of this sadist that says “Sioux Falls, South Dakota.” Missing is a Lutheran missionary. Her brother Luke is compelled to travel to Latvia in search of her, leaving his girlfriend Constance behind. Constance has begun a prison ministry in the South Dakota State Penitentiary.
But a stalker begins menacing her, a dark figure from the past, who threatens to reveal an ugly secret about her that no one must know. Meanwhile, the creeping monster continues to horrify Latvia.
Luke and a woman with whom he has fallen deeply in love stumble across The Creeper’s den in the mediæval city of Riga, witnessing a chamber of horrors!
Fate plays a double hand in the shocking denouement of this romantic but cruel tale.