Eden Log is a 2007 French science fiction horror film directed and co-written by Franck Vestiel. The film was Vestiel's first as a director, who shot the entire film using only hand-held cameras. Synopsis: An amnesiac man is left to piece together who he is and how he came to wake up inside a mutant infested subterranean complex.

References:
https://en.wikipedia.org/wiki/Eden_Log