Ianto is excited about the reopening of an old movie theatre called the Electro, and he convinces Gwen and Owen to accompany him to the first show. It's meant to be a compilation of old footage depicting Cardiff as it was eighty years ago, but the film somehow takes on a life of its own, repeatedly playing clips of an eerie carnival show from that era. Before the projector can be switched off, two figures from the reel step off the screen and escape into the real world. Jack realises that they're sinister figures whom he investigated long ago: the Night Travellers, who have the power to literally drain the breath from someone's body.