i caught this one on bbc america. it's got a bit of 'lifetime' channel flavor to it (female perspective, agonizing over a possibly unfaithful husband/boyfriend, etc) but it's still an excellent example of fine brit tv mystery. it certainly keeps you guessing right to the end.
Take a look back at the talented actors and actresses who took home a Golden Globe for Best Actor/Actress in a Motion Picture – Drama since the category was created in 1951.