Where can I watch Her Name Was Christa in United States?

Stephen is a socially awkward, middle-aged telemarketer and is desperately alone. At the suggestion of a co-worker, he goes out into the night to find a prostitute for "The Girlfriend Experience." He meets Christa, a streetwise call girl who's happy to fulfill his needs, and something unexpected happens. What starts as a business agreement blossoms into true love. But what happens when death enters the picture? How far would you go to keep the one person you've always wanted?