Frankenstein isn't your typical monster. For starters, he only has one head, just two eyes, and no tail. And worst of all, he's sort of nice! Frankenstein quickly realizes his friendly behavior is out of place at the Valentine's Day Bash.

There's one monster, though, who likes that Frankenstein is different. Can Frankenstein figure out the identity of his secret valentine? And can the other monsters finally accept Frankenstein for the monster that he is?