Tramps(1983)

The intellectual Willie flees from his bourgeois-academic environment, leaving behind his wife, child, and job to lead a vagabond life. In Vienna, he meets the retired laborer Josef, who becomes his closest friend. Together, they drink and roam the city. Willie makes one last attempt to visit his ex-wife in Salzburg, but she turns him away. Secretly, he takes his son Tommi with him, putting him in danger when they encounter a sinister motorcycle gang.