Mixing the tools of documentary and fiction, Hide and Seek alternates a set of interviews with adult lesbians talking about their puberty with the story of Lou, a girl who discovers her sexual orientation in the 1960s. The film was inspired by t-shirts adorned with the phrase ‘I was a lesbian child’ worn during the protests by the Lesbian Avengers activists, a group working for lesbian visibility which Su joined. When she saw the slogan, she realised that probably nobody had addressed the issue before in cinema.