A shy maths graduate takes a holiday in Dinard before starting his first job. He hopes his sort-of girlfriend will join him, but soon strikes up a friendship with another girl working in town. She in turn introduces him to a further young lady who fancies him. Thus the quiet young lad finds he is having to do some tricky juggling in territory new to him.

After discovering they are all dating the same same guy, three popular students from different cliques band together for revenge, so they enlist the help of a new gal in town and conspire to break the jerk's heart, while destroying his reputation.

Danny is hopelessly in love with his teacher Peggy Noble. Of course she doesn't even notice him while she plans to marry the obnoxious coach Roy "Jack-jaw" Kelton. When Danny's friend Lloyd invents a growth accelerator for fruit and vegetables to "solve world hunger", Danny uses it on himself and as an adult tries to show her Roy's real personality. However at his first appearance at school as an adult, he's mistaken for someone else...