修道院长大的纯洁少女“法兰西斯科子”，长大出了社会后仍对“男女为何要交往”“为何要发生性爱关系”抱持着疑惑。在这样沉闷的生活下，单纯的科子也终于开始对性爱产生了兴趣，没想到同时间她的两腿之间却突然长出了一个嘴巴非常贱的人面疮……

A singular deadpan comedy, The Passion tells a story of a young woman raised in a convent named Frances-ko (Mayuko Iwasa), after Saint Francesco. Distressed by not knowing about love and sex, she calls out for a sign from above, but instead hears a voice from below. A human-faced growth speaks to her from between her legs, constantly berating her, calling out "Woman, you are worthless!" Mr. Koga, as she names it, continues the verbal abuse, yet Frances-ko somehow adapts, forming an adversarial yet symbiotic relationship. This bizarre film, based on Kaoruko Himeno's acclaimed 1997 novel of the same name, is skillfully directed by Ryoko Yoshida, lensed by veteran cinematographer Akiko Ashizawa, grounded by Iwasa's show-stopping performance and enlivened by the hilarious Kanji Furutachi, who lends his voice to the chauvinistic Koga. The soundtrack boasts an unmissable eclectic score by legendary experimental musician and composer Otomo Yoshihide.

修道院で育った、天涯孤独で純粋無垢な女性・フランチェス子。社会に出たばかりの彼女は、どうして男と女は恋に落ちるのか、なぜセックスするのかを深く考え悩んでは、もんもんとする毎日を送っていた。そんな折、彼女の性器に人面瘡ができてしまう。しかも、その人面瘡は事あるごとにフランチェス子を「おまえはダメな女だ！」と口汚くののしる意地の悪い性格。情け容赦ない言葉の数々に打ちのめされながらも、人面瘡に古賀さんという呼び名を付けて一緒に暮らしていくが…。

수도원에서 자라 세상에 때 묻는 일 없었던 순수한 여자 프란체스코. 성인이 되어 사회에 나왔지만 어째서 남녀가 사귀고 잠자리를 하는 것인지 이해할 수 없어 의문만 가득한 그녀다. 그러던 어느 날, 프란체스코의 ‘그곳’에 처음 보는 얼굴이 자라난다(?) 그렇게 자신을 '코가'라 칭하는 얼굴과의 기묘한 공생이 시작되는데...