As Deadline reports, actress Michelle Monaghan (pictured in the middle) will play in the new HBO project 'Open' as Grace, a gynecologist who has an instant connection with Windsor, a yoga instructor played by Anna Torv (pictured on the right).

But both are not single. Grace is engaged to a man (Scott Speedman) whereas Windsor is in a longterm relationship with Holly played by Jennifer Jason Leigh (pictured on the left).