1. A group of friends go out for tapas after a day of golfing; but tempers escalate when they can't agree on how to settle the bill.
2. After finding a lost shoe in the street, a man becomes fixated on trying to trace its owner.
3. A professor at the University of Cambridge attempts to teach a student how to solve a cryptic crossword.
4. At a karaoke party to celebrate a colleague's promotion, a group of office workers decide to express their feelings through their choice of songs.
5. A group of strangers are invited to attend a private exhibition at an art gallery, but none of them knows why they were invited.