Edge of Darkness (DVD Double Feature) [DVD]

In Unknown, Liam Neeson awakens from a coma, only to discover that someone has taken on his identity and that no one, (not even his wife), believes him. With the help of a young woman, he sets out to prove who he is. Edge of Darkness; As homicide detective Thomas Craven investigates the death of his activist daughter, he uncovers not only her secret life, but a corporate cover-up and government collusion that attracts an agent tasked with cleaning up the evidence.