Kate Curtis is a 19-year-old rookie officer in the Federal Space Army Security Police, noted as voluptuous and virginal upon enlistment. She possesses red hair, cyan eyes, and measurements of 88-58-90, with her natural attributes directly contributing to her assignment selection for high-risk missions. Her inaugural undercover operation targets the Ulfan criminal organization on the desert planet Doune, where young women vanish into sexual slavery. Adopting a tourist persona vacationing alone, her disguise features skimpy clothing and provocative items intended to lure the criminals.

Ulfan agents swiftly capture her during a staged sight-seeing trip, despite police surveillance. Isolated and vulnerable, her priority becomes concealing her police identity. In captivity, she undergoes a brutal "training" regimen to break her resistance. This includes the loss of her virginity – symbolized by a shattering glass – alongside other degradations. Her relationship with captor Brick becomes pivotal; despite his role in her abduction and initial rape, he exhibits unexpected care for her, forging a complex bond. This dynamic fuels her development of Stockholm Syndrome, fostering an emotional attachment to him.

She faces a fidelity test to prove loyalty solely to Brick, refusing any other "master," which she passes. Her transformation culminates in her embracing the role of Brick's "pet." A subsequent police raid dismantles Ulfan and seemingly kills Brick, prompting her grief. Later revelations confirm Brick survived; they reunite within a month, cementing her enduring attachment despite the relationship's traumatic origins.