It is about the Goodmans, a secular middle-class Jewish family who live in suburban London and is centred on them gathering for Shabbat dinner.
He ropes in younger son, estate agent Jonny, to secretly hide the stash of magazines that he is supposedly throwing out at his flat.
Their strange, lonely, middle-aged neighbour Jim, who is attracted to Mum and is accompanied by his Belgian Shepherd dog Wilson which he is afraid of – frequently interrupts them to use their toilet as he has broken his own.
Dad wrongly believes that Chris Parker (Matthew Holness) is coming to pick up their old sofa bed tomorrow.
Mum sees Jonny put the magazines in his car, as well as the receipt for the back copies which Dad gave to Adam.
Jonny deliberately scares Adam by hiding in a black bin bag and jumping out of it, causing him to drop Mum's favourite dish that he is holding.
82-year-old Lou Anthony Morris (Harry Landis) is a selfish, angry, aggressive, arrogant, married man.
Lou rips a light fitting out of the wall and his shirt and tries to provoke Adam, Jonny and then Dad into physically fighting him.
Mum believes that Jonny bagged the car because he has been having a fling with his boss, 43-year-old Elizabeth "Liz" (Lesley Vickerage).
Adam chokes on the turkey and Dad makes a bad attempt at administering the Heimlich manoeuvre, then puts the oxygen mask on him.
Val tells the Goodmans – who are surprised to see her with a man other than her husband Larry (Steve Furst) – that he is her distant cousin, then cries and leaves.
Larry accuses Val of having an affair and visits the Goodmans' house, trying to find the other man – incorrectly assuming it to be Greencock, Martin and Jim.
When the rabbi (Paul Kaye) asks her if she will take him for her husband, she suddenly collapses and an ambulance is called which drives her and her family towards hospital.
The boys don't want Val to stay for dinner and are ecstatic when Larry calls her saying he is parked outside and about to take her to Paris on the Eurostar.
It is Dad's annual hinge-oiling evening but when he accidentally spills oil on his and Mum's bedroom carpet, he tries to clean it up himself.
At the restaurant, Jonny tricks Mum and Dad into thinking that the waitress in question is one who is plain and considerably older, until Adam corrects them.
Arriving home, the family find Val on their doorstep, crying that she has had another argument with Larry, this time about the Euro.
Jackie enters the room and to avoid her seeing the dead cleaner, Martin suggests that they should go to Paris by Eurostar.
However, it is overshadowed when Jonny arrives home from a holiday in Las Vegas, bringing his new American wife Lisa (Skye Bennett).
His sister 'Horrible Grandma' arrives for the funeral: she is demanding, breaks a cabinet and is arrested after damaging a hairdressing salon.
Dad is hiding a tin of meat in the shed which expired in September 1996, claiming it brings good luck.
He quickly becomes ill with food poisoning; and is taken away in an ambulance to hospital However, Jim reassures the boys that he, himself, eats 30-year-old meat.
Jonny invites Val and her son Spencer (who the boys claim cheated in his medical exams, although it was never proven) to the house – from Mum's mobile phone – in order to annoy Adam.
Adam is not happy when he is forced to play his violin to an audience of the family, Val and Spencer – whilst Grandma is listening via the phone before she commences in defrosting the freezer.
Everyone is soon distracted with the arrival of a dog cage, Jim having had it posted to the Goodmans and then set up in their living room as so to avoid attracting Milson's attention.
Val becomes upset at the date being cancelled and her previous breakup from Larry, as she serves the family her notoriously disgusting rice pudding.
The Goodmans decide to leave Val and Colin to talk as they get some ice cream, only for Jim to arrive to collect the cage – which he tells them is for him.
The boys quickly tell the girls; the Lucys and Dad distract Mum to stop her drinking the soup.
They are about to eat the crumble, only for Dad to accidentally smash a glass over it; seeing Mum lose the last of her patience, the girls both reveal they are pregnant in an attempt to defuse the situation.
After Adam and Jonny talk about how they both now need to grow up now that they are expectant fathers, Mum gets everyone to take part in a boogie celebration, which Jim joins.