Javi, a young rent boy living in Madrid, comes to a sauna club looking for a job. But soon he'll find out a place full of secrets, the biggest of them being a strange man who will fall in love with him: the Phantom of the Sauna常跟领导吃饭，升官是迟早的事； 常跟大款吃饭，发财是迟早的事； 常跟老婆吃饭，厌倦是迟早的事； 常跟情人吃饭，肾虚是迟早的事； 常跟异性吃饭，上床是迟早的事； 由此推论：想干什么事，先吃什么饭！