Reclusive mathematician Stephen Ezard returns to England to attend the funeral of his brother Michael, an aid worker killed by a landmine in Afghanistan.  He finds a world that has changed subtly but significantly from the one he left and feels like an outsider. Bewildered and ill at ease, Stephen is pulled into a spiral of strange events. Can Stephen take control of his life again and learn more about how Michael met his death?

Starring: Benedict Cumberbatch, Anamaria Marinca, Max Beesley, Robert Carlyle, David Harewood, Eva Birthistle.