Three twisted tales from the seamy side of Scotland and the mind of Irvine Welsh. The Granton Star Cause: in the same day a young Leith lad is dumped by his football team, his girlfriend and his parents, arrested and beaten up by the police and turned into a fly by God, whom he meets in a pub. The Soft Touch: a man is too soft to do anything when his wife moves in with the thug upstairs. The Acid House: while tripping on acid, Coco Bryce is struck by lightning, causing him to switch bodies with a newborn baby.

In the Kennedy days, all the States buzz about the Apollo moon program, even the bugs. Grandpa fly keeps 'inspiring' his grandson and two mates, a nerd and a glutton, with heroic stories. New they decide to get in on the action at Cape Canaveral via an astronaut's bred box. Grandpa also gets involved. There's also an evil Soviet Russian fly to with.

Fifteen years after his father's experiments with matter transmission fail, Philippe Delambre and his uncle François attempt to create a matter transmission device on their own. However, their experiments have disastrous results, turning Philippe into a horrible half-man, half-fly creature.

A young surveyer, new to Ontario, encounters the blackflies. Over and over again, he encounters those blackflies.