The daughter, Anne, seems far too old for her age. She is playing a 13 year old girl and her IMDB page lists her as being 14 when this aired, but I would've guessed she was 18 or 19. The character also doesn't act like a normal 13 year old - more like an 8 year old. So you've got a girl who looks like she's in college acting like she's 8. This is a bit cringe.
Also, plot-wise, the father should have just told the daughter about her biological parents from the beginning, as his wife suggested, which would have solved everything.
The blackmailer's sense of urgency is also odd, since he essentially just has one card to play: he has to threaten to tell the daughter if he doesn't get his money, but if he does tell the daughter then he can't get any money. So, I don't think he ever would have told the daughter, since that would just ensure that he wouldn't receive anything. So he's basically bluffing the whole time. Also, how would he go about it? Just show up randomly at her school, go up and tell her? That definitely wouldn't go over well, and he'd likely get arrested.
Other than these peculiarities, this a a very good episode with fine acting and a plot that keeps up the suspense until the end.
Also, plot-wise, the father should have just told the daughter about her biological parents from the beginning, as his wife suggested, which would have solved everything.
The blackmailer's sense of urgency is also odd, since he essentially just has one card to play: he has to threaten to tell the daughter if he doesn't get his money, but if he does tell the daughter then he can't get any money. So, I don't think he ever would have told the daughter, since that would just ensure that he wouldn't receive anything. So he's basically bluffing the whole time. Also, how would he go about it? Just show up randomly at her school, go up and tell her? That definitely wouldn't go over well, and he'd likely get arrested.
Other than these peculiarities, this a a very good episode with fine acting and a plot that keeps up the suspense until the end.