Blood Link

A respected United States doctor who experiences disturbing visions of women being murdered, which he believes are linked to a psychic connection with his twin brother, Keith. He travels to Hamburg to confront Keith while navigating police suspicion and his girlfriend Julie’s doubts. The pursuit forces him to balance science, belief, and a desperate sense of duty.

Craig’s twin brother, believed dead but linked psychically to Craig. In reality he is alive and murdering to draw Craig to him, displaying calculated violence and manipulation. His brutality escalates as he rapes and kills Christine and challenges Craig’s sense of reality.

Craig’s girlfriend who travels to Hamburg to help prove his visions are real. She becomes entangled in the danger the brothers unleash, supporting a plan to trap Keith even as she faces personal peril. Her resolve keeps the search alive amidst growing fear.

An older ex-boxer and one of Craig’s former patients who is drawn into the conflict. Keith goads him into a fatal fight, triggering his heart attack and igniting the chain of violence that follows. His death sparks Craig’s deeper involvement in Hamburg.

Bud Waldo’s daughter who becomes Craig’s ally in his search. She forms a bond with him, but Keith’s violence shatters this relationship as she is raped and killed, intensifying the stakes and the urgency of the quest to stop Keith.

The Hamburg police inspector leading the investigative effort. He remains skeptical of Craig’s guilt, scrutinizing the evidence while Keith’s crimes complicate the case. His role anchors the procedural aspect of the story.