Over at the rebranded The Other Palace (formerly St James’ Theatre), something rather magical is going on, with a bit of Broadway pizazz in this show of tall tales, misunderstandings, loss, redemption, daffodils, and fish.

Kelsey Grammer has been imported from the US to make his London stage debut in Andrew Lippa’s musical, itself based on the screenplay for the film (starring Albert Finney) written by John August, itself based on a novel by Daniel Wallace.

Edward Bloom is introduced at his straight-laced son’s wedding, shortly after they’ve been fishing. He’s been cautioned not to share his ‘stories’ or even make a toast, but of course, he doesn’t listen. Quickly, though, we realise that all is not well and that his son Will (Matthew Seadon-Young) will have to make sense of the man who he regards as a stranger and who is starting to slip away.

While Edward slips in and out of consciousness, with his loving wife Sandra (Clare Burt) and new (and pregnant) daughter-in-law Josephine (Frances McNamee) close by, we meet his young self (Jamie Muscato) and follow him on wild adventures with a witch (Landi Oshinowo), a giant (Dean Nolan), and a circus supremo (Forbes Masson), as well as young Sandra (Laura Baldwin). These boast bizarre and big song and dance numbers – often pastiches – while the real-time/life scenes are more of the ballad type. Little Will is present for most of the time, too, and was played by Colby Mulgrew at the performance we saw; he reacts to the fun and the sadness around him and pulls us in.

The set is simple enough, utilising sound effects and video projections to give us a sense of where we are, when outside the hospital ward.  A lovely act one closer gives us a stage full of daffodils, which were always Sandra’s favourite flowers, although we might not quite believe the story of how the young Edward and Sandra met.

Some commentators on this show have scoffed at reports of audiences being moved by events as they unfold, but certainly at the evening performance I attended there were quite a few people dabbing their eyes, and rightly so, as the final scenes are deeply moving, and the effectiveness of this has to be laid at the door of director Nigel Harman and star Kelsey Grammer, who is simply superb in both the humorous and tragic scenes, as well as throwing himself into the boisterous song routines.

Incidentally, front row ticket holders may well get a closer encounter with Grammer than you might have bargained for, which was amusing in itself.  There’s some doubling of roles in a hard-working cast, with Oshinowo and Masson portraying two characters, while the smaller roles in ensemble are well-drawn.  The fantasy sequences are great, and Burt is quietly wonderful in a role which might have misfired, as is McNamee. I found Muscato had a lot of charm as young Edward, although it’s hard to think he grew up to turn into Frasier (still Grammer’s best-known role, and despite best efforts he doesn’t quite shake off memories of Seattle’s finest).

If you want something which is ‘flipping’ marvellous, with a ‘sole’ and a good line in ‘cod’ philosophy, then make your way to The Other Palace for this short run; it is well worth your time and is definitely the ‘plaice’ to be.