Private moments become public maelstroms over a summer's day in a south London park.

George wakes up to find himself several months in the past before being recruited for the Lazarus Project – a secret organization that turns back time when the world is at threat of extinction.

It's Pete's birthday and the old gang from college are throwing him a party out in the country. During what’s meant to be a joyful weekend reunion, Pete finds himself increasingly unnerved by his friends inside jokes and snarky comments. Is he being paranoid or is he the butt of some elaborate joke?

After living thousands of miles apart, Charly and Ellen are reunited. But they are not as inseparable as Ellen had hoped, and some big news puts their friendship to an even greater test.

A troubled young woman bothers a stranger.

Marnie is not OK. She's had x-rated thoughts for the last 3672 days and she doesn't know why or what they mean. When she jumps on a coach to London, she doesn't know a soul, not even herself, but in the city she will build a new life.

Saskia has just moved into her first house, but the dream is tainted by an unexpected arrival.