The Thief, His Wife and The Canoe viewers were left stunned after they saw two familiar faces playing detectives on the show.
The ITV drama is based on the true story of John Darwin who faked his own death in 2002.
In scenes from the gripping drama, which concluded on Wednesday, John and Anne Darwin were interrogated by police about their dishonest plot. Detectives questioned the couple and tried to work out how the couple had planned John's disappearance, and whether Anne had known about the plot the entire time.
