"Roadside Picnic" is a science fiction novel set in a post-apocalyptic world where mysterious extraterrestrial visitors have left behind dangerous and enigmatic zones known as "Visitation Zones." These zones are filled with hazardous artifacts that grant strange and unpredictable powers to those who come into contact with them. The story follows Redrick Schuhart, a "stalker" who ventures into the zones to retrieve valuable artifacts while navigating the treacherous landscapes and facing the moral dilemmas that arise from the desperate and corrupt society in which he lives.