Sometimes, emotions can be a little too powerful...

Seventeen-year-old Steven has a big problem... Whenever he feels intense emotions, weird things happen. Like when he kissed a boy for the first time, and the boy's head literally exploded.

Fleeing to the miserable town of Grunsby-on-Sea, Steven is determined to not hurt anyone else - but he doesn't count on his best friend Freya, her boyfriend Marcus and American friend Troy following him. And when agents from the mysterious DEMA organisation show up talking about "neutralisation", Steven realises that Grunsby-on-Sea might not be the safe haven he'd hoped for...