Nine Lives
You get a letter that only contains a bunch of names, including yours. You don't know any of these people. There is no return address. Suddenly each of the people on the list start to die. What do you do?
SPOILERS: Now, here's my thing. There are a lot of people to keep up with. Some of them I cared about, some, not so much. (The couple falling in love, I liked. The actor with the superiority complex looking to hurt people, I did not.) I admit, I did figure out who was doing it early on and that he was being presented as two different people. Honestly, I was only going to give this about a 3, that last unexpected revelation saved it for me. Finding out Jessica was alive after all made me feel a lot better.
The premise about why he was doing this was a bit much for me. You waited that many years to do this and these people were alive, why not go after them instead of their children. Not to mention you didn't even let them know why it was happening, so what kind of revenge is that?