Doppelganger

Frank has a habit of throwing himself against the floor to ceiling windows in his 38th floor office. He does this to emphasize the importance of risk-taking. One day the window comes out. George is in the office when Frank falls. Marcia is at street level when Frank lands. George and Marcia are linked by Frank's fall and separated by the four and a half seconds it took him to travel the 38 stories. When they meet time starts to unravel.