Detective Murdoch investigates the murder of a pawnbroker, Samuel MacGinnis, who was killed while working late one night in his shop. One of his clients, Louise Butler, witnessed the robbery but is traumatized and now finds herself unable to walk. Inspector Brackenreid meanwhile gets a message from an old army friend, Reg Pullen, to visit him in prison. Reg saved Brackenreid's life and the lives of several other soldiers and was awarded the Victoria Cross for his bravery. He fell on hard times and into a life of petty crime and had his medal taken away. He arrives at the prison too late as his friend is found hanging in his cell. Dr. Grace however determines that he was actually strangled and then hung to make it look like a suicide. Murdoch and Brackenreid soon realize that their two cases are connected.