Tachyon

Tachyon asks a simple question- what would happen if you could send messages back in time to your former self? Lewis, a former post-graduate student at Cambridge University, has discovered a way to do precisely that. In her garage, she creates a machine that can send simple messages, encoded in binary, back in time to her former self. Sh recruits a deadbeat amateur filmmaker, Paul, to film the first test of his machine. But when the machine starts sending back strange, unexpected messages, Lewis and Paul are caught in a paradox that they cannot escape.