A group of young men from the upper-middle class in modern-day Italy, bored from the activities of everyday life, participate to a simulated-war "Wargame" match played with Soft-Air gun replicas (hence the title), only to find out that the opposing team is a group of foreign mercenaries on the loose that takes such occasions for training and gratuitously killing innocents.

Benito González is a flamboyant engineer in Melilla, with a brash and pushy personality. His dream is to build the tallest building ever in the region. After his girlfriend leaves him, he devotes himself entirely to his ambitions, deciding to let nothing get in his way. He marries the daughter of a billionaire, intending to use her father's money to realise his project. Benito waltzes his way through a career of excess, fetishes and deceptions, but the personal conflicts he unleashes ultimately send his life spiraling down to disaster.