Published thirty years after the events it describes, Kaysen's memoir recounts her nearly two-year stay at in Massachusetts starting in 1967.

At age 18, after a brief interview with a psychiatrist, Kaysen was diagnosed with Borderline Personality Disorder (BPD)—a diagnosis she critically examines throughout the book.

The title refers to her "innocence" or normal youth being interrupted by institutionalization. Kaysen questions whether her "illness" was truly a medical condition or a refusal to conform to the rigid gender roles of the 1960s. The Film: A Cinematic Icon

Unlike traditional biographies, the book is written in fragmented vignettes, interspersed with actual copies of her hospital records and intake forms.

(known in English as Girl, Interrupted ) is a profound exploration of mental health, social conformity, and the blurred lines between sanity and madness. Based on the 1993 memoir by Susanna Kaysen , this story became a cultural touchstone following the 1999 film adaptation starring Winona Ryder and Angelina Jolie .