Freely adapted from the eponymous novel, Une vie pour deux is inspired by real events, the discovery by the novelist's husband (director Jean-Pierre Ronfard) of the corpse of a young woman on a beach in Ireland in the late 1970s.
| Actor | Role |
|---|---|
 Violette ChauveauSimone | Simone |
 Jean-François CasabonneJean | Jean |
 Evelyne de la ChenelièreMary | Mary |