Diane is very nervous about her case against a tough lawyer so Wayne invents a thinky ring to help her retrieve her thoughts better. Unfortunately, she becomes a brain sucking vampire. Wayne finds out and goes after her to lure her home. Nick manages to get the ring off but this turns him into a brain sucking vampire. Diane figures things out and plots to fight Nick and get the ring off before he takes over the world.

Since Diane is allergic to chocolate Wayne tries to remove the allergic compound from the chocolate, but accidentally creates a chocolate that makes people fall in love. Damon, Amy's best friend, has a crush on Amy and Nick tries to get Amy to eat the chocolate. When she finds out how the chocolates work, she tries to get her crush "the make out king" to eat it. Diane, Wayne, Tiara, and a mutated Dr. Jennings also eat the chocolates, so Nick has to find the antidote that will make everyone (relatively) normal again.