My poor Sim met Caleb Vatore at the Track Side Bar and Cafe. She was seated at the bar, when Caleb came rushing in, ordered a drink, said (maybe) 1 or 2 things to her, then rushed out... before his drink was finished. Since it wasn't purple-colored (Plasma Fruit), I had my Sim drink it once she was done with her first drink (though I think she maybe developing a drinking problem).
Anyway, that night after she had gone to bed, Caleb broke in and drank from my Sim! Ugh! I decided to get a garlic wreath for the house (using DEBUG Mode).
The VERY NEXT NIGHT Count Vlad broke in, after she was asleep. He then drank from my Sim and said that he'd see her again next time he wants a midnight snack - doesn't plan to turn her, either. He also said that it would take more than just garlic to stop him.
It's been a while since she was attacked by vampires (4 or 5 nights ago), but I'm very wary at this point. Also, Lilith Vatore STILL has NOT attacked my Sim... yet, but still it's two out of three vampires! You can understand why I'm so jumpy when she goes to bed. My poor Sim... :(