On October 6, 2012, around midnight, Swiss banker Michel Yagchi committed suicide in the basement of his home in Geneva. That evening, Michel Yagchi's entire family was out of the country, traveling to Brussels to attend the graduation ceremony of Michel's eldest son, Yvann. Three years later, Yvann decides to investigate his father's mysterious suicide and, at the same time, confront his family, friends, and colleagues.