Bryan Cranston and Essie Davis star in the latest Philip K. Dick story. Set in 2520, Cranston stars as Silas Herrick, a military commander who is attacked by aliens from the planet Rexor IV. He returns to his wife Vera (Davis) and he appears to be physically unscathed, but his personality has changed dramatically. Before the attack their marriage was loveless, but now things have improved. However, is Silas the same man? Electric Dreams is on Channel 4 at 21.00.