 A teenager named Mary Lou (Juanita Quigley) has witnessed the crime and as long as she sticks to her story the case is too strong.In an attempt to free Cory from the influence of Donovan's brain, Janice finds out from an investigator named Grimes (Charles Cane), hired by Mrs. Donovan and Fulton, that Cory is trying to bribe the witnesses to withdraw their statements.Grimes has knowledge of Donovan's dirty business and believes that there might be a connection between Collins and Donovan's earlier attempts to get rid of reluctant business counterparts.