Once upon a time there was a free spirit called Tim, who fell in love with olde folk tales and created little shows all about spells and wonders, and peopled them with princes and princesses, farmers and animals. When he was more grown up, he formed a gang with another free spirit and then with a lady known as the Poet Laureate, who came from a cold, snow-covered country in the North. Then the three of them created a bigger show and staged it in a city called Bristol in the West of England several years ago. Then finally they brought this show, which had grown and grown, to the chief city of the kingdom.

Most critics have their own indicator of shows they have enjoyed hugely; for my part, if I fail to take anything but the most basic notes it’s because I’m so engrossed in the story or I’m laughing too much. And so it proved last night, when I found only hastily scribbled words - great this, wonderful that - in my notebook, enough to tell me that Richard Eyre's production of Georges Feydeau's 1907 farce A Flea in Her Ear is a hoot.

Incongruence is always interesting, so the news earlier this year that Anthony Neilson, bad-boy author of adult plays such as Penetrator, The Censor and The Wonderful World of Dissocia, was penning a Christmas play — suitable for kids — at the Royal Court came as something of a delightful surprise. It was also clearly a chance to make amends for The Lying Kind, his 2002 seasonal venture at this address, which received what are politely called mixed reviews. This time, it's good to be able to report that his new festive comedy, which opened last night amid gales of laughter, proves that he has returned to top form.

Via the Chichester Festival and acclaimed runs on Broadway and in the West End, director Rupert Goold's Macbeth has made a sizzling transition to television. Set in an anarchic, war-torn Scotland and suffused with imagery of murder, torture and Stalin-style purges, it placed Patrick Stewart's thunderous central performance in a spinning black hole of evil, into which he was remorselessly sucked as the action developed.

For quirky authority in Shakespeare, Kathryn Hunter is surely up there with Mark Rylance. Her production of Pericles was one of the two best things I’ve seen at the Globe – Rylance in Twelfth Night being the other - her characterisations of Lear and Richard III as compelling as any. Hunter plays Cleopatra as a regal, shrewd eastern cousin of Katherina and Beatrice, making the case for a very human prose which would no doubt work better if the production around which she snakes and sharptongues found a little more poetry in other quarters.

Welcome to the stinking, sprawling Bayou Mansions – the thorn in a prosperous city’s side, the “short-and-curly hair in the mouthful of sponge cake”. So cramped there isn’t even room to swing a rat (and there are plenty), so corrosive that everything here starts life as a bad smell. Forget the enchanted worlds of fable and fairy tale, this is a dystopian childhood fantasy masterminded by the select team of Kurt Weill, Kafka and the Wicked Witch from Snow White. As delicious as it is delicately malevolent, The Animals and Children Took to the Streets is a strychnine-laced gumdrop of a show, and slips down all too sweetly.

Ding dong, merrily on high! Christmas is almost upon us, and those girding themselves for a ghastly family get-together, complete with forced good cheer, paper hats and booze-fuelled bust-ups can see all their worst domestic nightmares enacted in Alan Ayckbourn’s bilious tragi-farce. Painfully funny and piercingly desolate, it’s a side-aching, heartbreaking depiction of loneliness, self-delusion and misery in middle-class suburbia. And Marianne Elliott’s excruciatingly fine production is as sour and dyspeptic as a Boxing Day hangover.

A lot of ink gets spilled about the quest for the next great new British musical, which results in pedestrian endeavours - you know who you are - being elevated beyond all common sense. And now, along comes Matilda, a holiday entertainment about a surpassingly smart young girl who is capable of magic, and guess what? The show itself is as smart and magical as its pint-sized, eponymous heroine, and something more than that, as well.

Swallows and Amazons is a quintessentially English story: a heart-warming hymn to decent values, the codes of sailing and the youthful spirit of adventure. Set in 1929, at a time when the country faced financial meltdown, it is perhaps not surprising, in our equally uncertain times, that Arthur Ransome’s feelgood Lakeland classic should have been adapted for the stage. Tom Morris’s production of a very well-handled adaptation by Helen Edmundson with music and songs by Neil Hannon - better known as The Divine Comedy - fizzes with spirit and sparkles with invention.

It's the right season for a frosty Lear. With people being frozen on the open road by temperatures rarely visited upon the land, we're reminded that nature can be our greatest adversary, that we're placed in the universe as much to fight its innate physical savagery as we are to fight each other. With the exception of The Winter's Tale and As You Like It, with which King Lear keeps close thematic company, Shakespeare's plays don't really address the wild outdoors.