Calvin claimed he held no grudges but is lying to himself; he hates one man deeply.
As a child at a boys home, Calvin saw a man exit a limousine, which was an uncommon event in Iowa.
The boys thought the man might be famous, but he only brought a briefcase. They lost interest when he didn't provide gifts like other visitors.
After the man’s visit, the home received educational supplies like textbooks and chemistry sets.
Calvin found that the pages on evolution were removed from the biology textbook. His curiosity was met with punishment from the priest.
Bishop chastised Calvin for allegedly lying about reading all the books in the home's collection. The bishop implies that Calvin was born good but became bad.
The bishop reveals that the recent supplies came in exchange for fundraising and criticizes Calvin's undisclosed biological father for it.
Calvin learns he was adopted and that the man in the limo, who is his biological father, didn’t reclaim him because he wasn’t interested after seeing his photo.
The bishop dismissively tells Calvin that his biological father did not want him and felt Calvin was better off at the boys home.
Calvin discovers he was born out of a tragic situation: his birth mother died, and his father couldn't cope.
The new educational supplies and cash were provided by Calvin’s biological father with specific conditions for improving education and sports.
Calvin hopes his biological father, supposedly a scientist, will return for him, but the bishop is non-committal.
Despite longing for his father, Calvin studies all the books sent by him, trying to understand their shared bond.
Calvin realizes that both his biological father and the science he loves have abandoned him, leading to his enduring grudge.