Under the arches of London Bridge two policemen pursue a murder suspect. The man gasps for breath, desperately searching for an escape route as the cops close in. Meanwhile, some place not far away, a crowbar-wielding physicist lunges desperately at a reanimated corpse. An experiment has gone wrong, opening a portal to a savage alien world. Chaos ensues.

Both of the above are performances of sorts; in the first, the suspect is an audience member in an immersive theatre production; in the latter, the physicist is a gamer. Read more.