It's Marcella's birthday, and she's determined to turn over a new leaf... but after a run-in with a school nemesis and one sambuca too many, among other things, her fresh start doesn't go as planned.

A boozy night out has disastrous consequences for Marcella including a ruined children's party, a lot of missed calls from her ex-boyfriend and an unwanted house guest who has never seen "Friends".

Marcella's ex-boyfriend, Simon, reenters her life with some startling news and a further surprise arrives in the form of his new wife Tania. To clear her head Marcella sets off on a gung-ho camping trip.

Marcella's wayward brother Billy is coming out of rehab, restarting their sibling rivalry. She lands an audition but needs to cry for the role, and no matter what she tries the tears just will not come.

Marcella is thrilled to get a role in a film but her joy is short lived when her actions inadvertently cause the lead actress to have a meltdown. With filming cancelled she spends a giddy evening with Jon.

Marcella needs to tell her family about Billy's drug problem but can't bring herself to dent her mother's faith in her golden boy. Finding her hot-headed father as unhinged as usual she reluctantly turns to Simon for help.

A hungover and guilt-ridden Marcella has to face a date with Jon, while haunted by flashbacks from the night before - only to be called away thanks to Billy.

Marcella takes her driving test and goes on a date with her driving instructor Jon. She witnesses flatmate Caroline calling boyfriend Mark a filthy rat during sex and finds her ex, Simon, in a compromising position.

Marcella deals with the fallout of her date with Jon. She confronts Simon about his wife's behaviour. And after a life coach session, she decides to visits her agent Pam.

Marcella is feeling left behind. But she gets news of an audition. Will this be her big break?

Marcella stars in a TV advert and spends some of the money on joining a writing class. Unfortunately she has a huge hangover from a night out with the girls.

Marcella goes to stay in a country cottage to write and stay off the booze. While she's there, she encounters a horse, a spider and a surprise visitor.

Marcella goes to Jon's art exhibition and receives some news from Tom about their writing idea