De noche van a tu cuarto (2005)

Maxi Herneston's life is difficult: he works at a video store, endures constant torment from his older brother, and lives with a mother preoccupied with sex. However, these problems pale in comparison to when he accidentally ingests an alien virus. The virus makes him violently ill and, ultimately, causes him to expel five aliens. Initially appearing friendly, the aliens reveal they have their own plans for Maxi and the future of Earth.