Well, like everyone else, The Betty Brodrick stories are some of my favorites. Meredith Baxter-Berney played the heck out of that role!!
I think every man needs to watch those movies as a warning.... lol
I love anything with Nancy McKeon or Patty Duke in it.
One of my other favorites is the one, I think it is called The Face On The Milk Carton (or something like that) about the girl who found out that her parents were actually her grandparents (or so she thought) until she saw her pic on the back of a milk carton.
I also like the one with the real skinny lady from Who's The Boss (I can't' think of her name) but anyway she marries men and then poisons/kills them for their life insurance. Well, she ended up getting caught because the last man she married, she faked her own death but then reappaeared as his dead wife's twin sister! As if people would believe that mess. lol