my husband, who only talks and has no plans, borrowed money from a painter in a slump. as the repayment deadline approaches, a certain request comes from the painter. it was that if he was allowed to use his wife, Sara, as a life drawing model, the debt would be forgiven. sara visits the painter's house as her husband tells her to, but as the days go by, her rationality collapses in the abnormal days where obscene requests increase...