Channel 4 (UK) Black Mirror - Episode 1:
"Martha and Ash are a young couple who move to a remote cottage. The day after the move, Ash is killed, returning the hire van.
At the funeral, Martha's friend Sarah tells her about a new service that lets people stay in touch with the deceased. By using all his past online communications and social media profiles, a new 'Ash' can be created.
Martha is disgusted by the concept but then in a confused and lonely state she decides to talk to 'him'..."
Definitively worth watching.