A young priest comes to a town to help the old provost in pastoral ministry. It early May, the parish prepares for the First Communion. Unexpectedly, the provost is admitted to hospital with a heart attack. Priest Piotr is on his own now in a completely new place. At a catechesis, one of the girls catches his attention. She’s sad, introvert and sometimes even aggressive. Marta is a daughter of the richest man in the town. During her confession, the priest feels she’s hiding something. When the time of Sacrament reception comes, Marta runs away from the altar. After hours of searching, priest Piotr finds her hidden in a vestry. The girl tells him the horrible truth.