The Foster Boy (German: Der Verdingbub) is a 2011 Swiss drama film directed by Markus Imboden.

Berteli is upset at being separated from her mother and at first Mrs Bosiger shows tenderness towards her by giving her chocolate when she cries at the dinner table.

Sigrist, take a special interest in Max and encourages him to play his accordion for Wrestler's Day.

He refuses and Berteli, sensing her mother's dilemma, voluntarily leaves and says that she will go back to the Bosigers and that she came to see her because she was homesick.

Miss Sigrist angrily tells Mrs Bosiger that it is her responsibility to care for these two children and not ignore what has been happening to Berteli.

A heavily intoxicated Mr. Bosiger prevents Max from going to Berteli and forces him to play his accordion to hide her screams.

Mr. Bosiger shows the authorities the bottle of castor oil that Mrs Bosigner forced Berteli to drink.