I also totally agree. The final episode was absurd.
Instead of explaining the characters motives, the whole thing just left you completely bewildered.
Gavin was adopted, his father abuses him, then sexually abuses his adopted sister. Gavin then appears to lay all the blame on Peter, the girl's real father, who gave her up as a student. Surely the targets for his revenge would be the foster parents ?
Then we have Cassie, why did she find Gavin irresistable ?
This guy had beaten her daughter black and blue, more or less ruined their lives, and she still has a morning rough and tumble on the couch with him ? In the original there were hints of a sado-masochistic relationship between both mother/daughter and Gavin, this at least went some way in explaining their strange behaviour. In this version, it just seemed bizarre and unbelievable.
There were some good bits, practically all of them thanks to Trevor Eve. The scene in the car with his son was outstanding, when he stopped and let out that primal, almost silent scream. It really made my hairs stand on end.The desperation of a man who had lost everything has rarely been depicted so well.
There was also the moment when he nearly kisses Prue on the lips, just about realising how far he has gone, and what it meant. But the original was full of such moments, scenes that were uncomfortable but gripping. This was hurried and ultimately unsatisfying in comparison.