Lust, Caution
Lust, Caution. WARNING spoilers for the movie
Snape is an important DE in a (?temp) Voldemort puppet-government that has taken power. A young idealistic (but naive) group of students plan to assassinate him. There is the righteous, morally certain leader (cough *Hermione* cough) and a well intentioned ingenue (authors choice) as the bait that falls for his/her prey. Bonus points if this amateur resistance group is taken advantage of by the real (?Dumbledore) resistance. Snape's true allegiance and ending up to author.