In the case of long-term major traumatic events such as the Cambodian tragedy there is a close relationship between the individual's clinical history and the collective history of his/her ethnic group. Most of the refugees who have survived a given historical event share the same history with nearly the same trauma, the same loss, the same flight to escape, the same difficult resettlement and so on. However, even if refugees have lived the same events, this does not mean that they have experienced the same trauma. Both trauma and culture shape human experience and may give the illusion of a common destiny that would flatten out varying individual fates, whereas in fact different destinies are contingently linked together. These questions pose a challenge to clinicians' knowledge of the relationship between trauma, culture and subjectivity and of course they challenge the concept of post-traumatic stress disorder as well. While knowledge of cultural differences is essential for clinicians, it is equally essential to be aware of how the individual's psyche may find hidden paths within the constraints imposed by culture, or even by trauma itself. To illustrate this issue, the article focuses on the case study of a Cambodian refugee to France.