Darrin is a young man on vacation with his family in Malibu, CA. While they're having fun in the sun, Darrin is going through his ups and downs with Kelli, a beautiful young girl that's stolen his heart. To him, she's a perfect 10. The only problem is that she is his big sister's girlfriend...Which according to 'Big Sister Law' is totally TABOO! Is it because she thinks he's too young or simply not good enough for her friends? Sometimes laws are made to be broken...Especially when it comes to affairs of the heart.