The latest agreement detailed plot introduction: Raoul Clave's son, who had just turned 18, died in a car accident. Deeply shocked, he accepted the police department's investigation conclusion: his son died in an accidental incident. He endured his grief and dealt with his son's posthumous affairs. Afterward, Raoul Clave met a woman named Diana who had rushed from Paris. Diana's words about his son left Raoul Clave greatly surprised; his son’s car accident was not as simple as the police station's conclusion suggested. It turned out that his son had previously signed a new drug trial agreement with a hospital featured in a recent movie. Diana firmly believed that his son's car accident should not have happened.