"Walking Man" is one of the most iconic sculptures of all time. Created in 1960 by Alberto Giacometti for a New York bank, it will have an unusual fate. The sculpture was never installed in front of the Chase Manhattan Bank as planned, but fifty years later, in 2010, "Walking Man" became the most expensive sculpture of all the works of art sold at auction in the world, reaching a value of 104 million dollars! How did this work become the most expensive sculpture of all time and why did it reach this record price? To follow the thread of this astonishing story, the investigation takes us to Saint-Paul de Vence, Paris and New York...