Teacher Clara has always suspected that her rebellious pupil Júlia cheated on her exams, but she has never been able to prove it - until the day Júlia herself admits, with a teasing smile, that she copied from her. Furious at her audacity, the teacher decides to administer an unforgettable punishment: instead of suspension or a warning, she forces the girl to kneel down and lick her heels until she removes them with her mouth, and then cleans every inch of her feet with her tongue until they are perfectly shiny. What begins as humiliation, however, takes an unexpected turn when Julia reveals that she enjoyed the challenge... and that perhaps she had planned it all along.
