I'm writing a book

[insane]

I could link what I have written so far but that would be too long and you would never read it so I will tell you the summary and maybe you could suggest what could happen next.
Girl who is super hot picks up a guy at a bar who is ugly as shit and fat. He thinks he won the fucking lottery. SHe take him to a hotel and gets naked and takes a shower while he waits tied up on the bed. she puts a blind fold on him so he can't see and then well she fucking cuts him up and eats his ass. She disposes of the body hiding evidence and they report the guy missing. Investigator the day before went to the same bar and almost hooked up with the murderer chick but got a phone call that his daughter was in a car accident and had to go. He is on the case to find the missing guy and figures out dude was murdered when they find her hair in the shower drain with his blood on it. Also some workers at the dump noticed a funny smell and came across a half eaten corpse of the victim.
I am a little stuck as to where to go from there.