The Third Walker

The Third Walker is a 1978 Canadian drama film directed by Teri McLuhan.

[1] The film explores the effect on two families in Cape Breton Island of having had their infant sons mistakenly switched at birth by the hospital.

[3] Kate Maclean (Colleen Dewhurst) and Munro Maclean (William Shatner) have two twin boys, Andrew (Andrew Rankin) and James (Darren DiFonzo).

This development fractures the Maclean family, as Kate's unrelenting obsession with regaining custody of Étienne destroys her relationships with both Munro and James.

[2] Years later following Munro's death, the now adult Andrew (David Meyer) and Étienne (Anthony Meyer) reunite at his funeral for the first time since the incident; while Andrew has maintained a brotherly bond with James (Frank Moore) despite their mother's attitude, it too is now tested by Andrew's desire to build a closer relationship with his real twin.