When Caleb's mom decides they are moving to her childhood home in Wisconsin, Caleb is not thrilled. Moving schools, states, and time zones would be bad enough, but Mom's hometown is Samhain, a small and ridiculously kitschy place where every day is Halloween.

Caleb is not a fan of Halloween when it only happens once a year, so Halloween-obsessed Samhain is really not the place for him. How is he supposed to cope with kids wearing costumes to school every single day? And how about the fact that the mayor is so committed to the bit that City Hall is only open from sundown to sunup to accommodate his so-called vampirism? Sure enough, Caleb becomes an outcast at school for refusing to play along with the spooky tradition like the other sixth graders. Luckily, he manages to find a friend in fellow misfit Tai, and just in time, because things are getting weird in Samhain...or make that weirder.

But there's no way the mayor is an actual vampire, and their teacher absolutely cannot really be a werewolf--right? Caleb discovers Samhain is so much stranger than he ever could have imagined. As one of the only people who realizes what's happening, can he save a town that doesn't want saving?