The life he lived compared to the life he should have lived is tragic for this man. Switched at birth. Was there a reason?
It turns out this man, as an adult, has some of the same characteristics as the biological parents he never knew. Raised under terrible abuse by parents that could not deal with the fallout of suspicion by the "father" that the child was the product of an affair, and yet he turned out kind and caring.
What of the man that was raised by the other couple?