In the so-called "Forbidden Zone", rumours circulate that there is a room where the most intimate desires are fulfilled. For Andrei Tarkovski, the "stalker" is the guide who takes the "traveller" through the labyrinths that lead to the "zone", where the chamber of the imaginary is located. A well-known writer and an authoritarian professor set off in search of this division, each with their own reasons, which they prefer not to reveal. They are guided by a figure somewhere between a holy fool and the apostle of a new religion. Stalker is one of the masterpieces of world cinema, adapted from the novel by the Strugatsky brothers, a science-fiction film between parable and philosophical meditation.