Half a year into his solo mission on the edge of the solar system, an astronaut concerned with the state of his life back on Earth is helped by an ancient creature he discovers in the bowels of his ship.

An intergalactic odyssey of love, ambition, and self-discovery. Orphaned as a boy, raised in the Czech countryside by his doting grandparents, Jakub Procházka has risen from small-time scientist to become the country's first astronaut. When a dangerous solo mission to Jupiter offers him both the chance at heroism he's dreamt of and a way to atone for his father's sins as a Communist informer, he ventures boldly into the vast unknown.

But in so doing, he leaves behind his devoted wife, Lenka, whose love, he realizes too late, he has sacrificed on the altar of his ambitions. Alone in Deep Space, Jakub discovers a possibly imaginary giant alien spider, who becomes his unlikely companion. Over philosophical conversations about the nature of love, life and death, and the deliciousness of hazelnut spread, the pair form an intense and emotional bond.