In Deep End, Skolimowski told the story of fifteen-year-old Mike, who dropped out of school to start working at the town bathhouse. The attractive boy quickly becomes an object of desire for the bathhouse’s aging female customers, while he himself falls madly in love with his work colleague, the beautiful, red-haired Susan, who is a few years older than he. In an attempt to win her heart (and body), the young boy plunges into a love-erotic obsession.
In telling the story of a teenager on the road to sexual initiation, Skolimowski took inspiration from the style of English cinema of the time. Iwona Grodź wrote:
The aesthetics of this film suggest the possibility of placing it in the history of British cinema, going all the way back to the days of English ‘young angst’, with John Schlesinger’s ‘Darling’ (1965) at the forefront. The director repeats, as it were, in a new space and with new actors, the Polish equivalent of this film, ‘Walkower’ [Walkover]. We observe the interest, typical of British cinema of those years, in ordinary people trying to break out of a world of poverty, drudgery and mediocrity. […] The choice of a space with distinctly anti-aesthetic qualities, the para-documentary way in which it is shown and the acting reminiscent of improvisation are features that allow us to place this film among other British productions of the 1960s.
Moving to the Islands, Skolimowski faced new challenges – including the language. And since his English was not perfect at the time, the director decided to bring in two Polish friends to work with him: Jerzy Gruza and Bolesław Sulik, whose proficiency allowed him to adapt the jokes he was making into English. The director had such a small budget at his disposal that the only way to reward his Polish friends was to include their names on the list of co-scriptwriters. Years later, Skolimowski recalled this fact: ‘Truth be told, there shouldn’t have been any names on that script, because it was barely a sketch of what was going to happen.’ For Deep End was created in an atmosphere of improvisation, the scenes grew day by day, and successive inspirations influenced the shape of the film on an ongoing basis.