Meet Don: he's single, neurotic, thirtysomething and British. He's trying to navigate his way through life, but his neurotic mind is his worst enemy.

Don's recently deceased grandmother has left him a house in her will. However, it comes with a huge backpayment and a strange man who won't leave. To help ease the load, Don decides to bring in a lodger.

In an attempt to prove to Abby that he's a good person, Don accompanies her on a field trip with the kids from her school. However, his plan goes horribly wrong...

Don discovers he's got to put on a wake for his dead grandmother, the only problem is he's already cremated her.

While working as a charity street collector, Don meets an attractive girl who is nine years younger. He starts to hang out with her and her friends, but soon finds he isn't as young as he once was.

Don gets a new job working for Karl's dad, Glen. While there, the feud between the two increases and Don finds the father figure he never had.

After a raucous night out with Eddie, Don finds out that Abby has just split up with Karl.