Wren, Reynold, Everett and Lucy face off against ferocious, nougat-munching monsters that lurk in the shadows of the sleepy town of Auburn Hollow. They must learn to use their imaginations to unlock the magical powers of their homemade costumes and save the universe on a night where monsters reign… Halloween!

A video blogger records his new relationship – but a series of disturbing murders are also captured on his camera, and the true identity of the killer is hidden – for now.