Recently released from prison, David Marion didn’t expect to find a hitman at his door. Warned that a powerful secret organisation is after him, David goes underground and off the radar – waiting for the perfect moment to wreak revenge. Physicist Helen Freyl has just accepted a job offer from a giant pharmaceutical company who are close to finding a cure for radiation poisoning. But when the mysteriously sudden death of a colleague is followed by another, Helen begins to doubt her employers’ motives and realises that her own life is in danger, too. Venom bring David and Helen together as they fight for their lives against a backdrop of industrial espionage, corporate greed and human tragedy.