The Nail is a German drama film directed by Christian Zübert. It tells the story of a young man, Thomas, who is struggling to come to terms with his father’s death. After his father’s death, Thomas is left with a nail that his father
From Wikipedia
A nail is a protective plate characteristically found at the tip of the digits of almost all primates, corresponding to the claws in other tetrapod animals. Fingernails and toenails are made of a tough rigid protein called alpha-keratin, a polymer also found in the claws, hooves, and horns of vertebrates.