The love between Lilly and the man she grew up with for most of her life, Paul, might be forbidden, but indulging in the forbidden never gets you in trouble -- so long as you keep it a secret. Unfortunately for the lovebirds, their secret is discovered by Mr. Blatch, their biology professor.
Driven mad by loneliness, Professor Blatch sees an opportunity to experience the touch of a woman once again. His proposal is very simple: either Lilly breaks things off with Paul, or secrets will be spilled and grades will be changed, and Paul's hope of getting into medical school will be dashed.