Someone please help me properly express 3 thoughts

Here are 3 thoughts that I would like to properly express that have to do with TV shows. I'd like to be able to tell someone these 3 things and for them to understand what I'm getting at.

(Is there anything wrong with the above 2 sentences grammatically by the way please?)

1 Whatever your fantasy girl (is), she morphs into. (the monster turns into the woman of your dreams and makes you do things you wouldn't do normally.) A sci fi movie about a monster that does that.

2 What you see in the "previously" part at the beginning of each episode, that's what you are going to see it the episode. If in the "previously" bit you see a character that you haven't seen on the show in a while, that character will be in the episode you are about to watch. The "previously" bit is pertinent to the episode you are about to watch.

3 Every time a magician does a magic trick a person dies the same way his trick unfolds. So if he does the executioner (a magic trick), someone will get hung and die. Instead of the magician dying doing the impossible, someone else dies in the magicians place. (working black magic in a movie)

Thank you