I'll Follow You Down (2013)
After her genius husband disappears from a routine business trip without a trace the next 12 years becomes so much to bear... But when her son comes of age and is wooed by MIT, his ability to unlock the mystery of quantum physics begins to unravel the mystery of time.
After the disappearance of a young scientist on a business trip, his son and wife struggle to cope, only to make a bizarre discovery years later - one that may bring him home.
- Sal goes back in time to 1946 to confront his father, who also had gone back in time 12 years earlier. They meet in a Princeton, NJ bar, the father wants to meet Albert Einstein. Sal shows him an IPad with an old newspaper clip reveals dad had been mugged and killed and never returned. The mother had killed herself in despair at the husband's disappearance. Sal pleads with him to choose family over his mission. Sal also mentions his wife Grace had miscarried, all would be set right if the father returned.
Dad says he will be careful but wants to stay. Sal suddenly pulls a gun and shoots himself in the head.
Dad then arrives back home, from his " business trip", to his wife and young Sal.