The female spy infiltrates the enemy's hideout on an extremely dangerous mission to steal secret documents containing vital intelligence. This mission always carries the risk of death, and if captured, she may be restrained on a steel crucifix and subjected to sadistic torture or vibrator interrogation. Under no circumstances can she reveal the secrets, even under such extreme conditions. To prepare, the female spy undergoes intense "self-interrogation" training, torturing her own body with her own hands. This rigorous training builds the mental and physical resilience needed to endure any form of harsh interrogation.