The young Michèle Isola, who is about to inherit a fortune from her godmother, scarcely survives a terrible fire. When she regains consciousness it becomes evident she suffers with amnesia. Once her physical health is stable again, she is allowed to leave the hospital. Yet the currently mentally fragile patient still needs somebody to take care of her for the time being. Her former nanny Jeanne shall support her. Michèle, who is haunted by flashbacks, appreciates Jeanne's help until certain information arouses her suspicion. In secret she starts now an investigation

Source : Wikipedia