A father (Sergi López) and his son arrive at a rave deep in the mountains of southern Morocco. They are searching for Mar -- daughter and sister -- who vanished months ago at one of these endless, sleepless parties.

Surrounded by electronic music and a raw, unfamiliar sense of freedom, they hand out her photo again and again. Hope is fading, but they push through and follow a group of ravers heading to one last party in the desert. As they venture deeper into the burning wilderness, the journey forces them to confront their own limits.