Tell No One (2006)

Pediatrician Dr. Alexandre Beck (François Cluzet) misses his beloved wife Margot Beck (Marie-Josée Croze), who was brutally murdered eight years ago when he was the prime suspect. When two bodies are found near where the corpse of Margot was dumped, the Police re-open the case and Alex becomes suspect again. The mystery increases when Alex receives an e-mail showing Margot older and alive.