In this human, almost black comedy by Ronald Harwood, two sisters are reunited in the railway carriage home of their recently deceased mother.

One, the dutiful, downtrodden Edith (Beverley Klein), has never left the claustrophobic family home, acting as her mother’s carer for the last 15 years. The other, the flighty, wealthy, glamorous, overemotional Renata (Katharine Rogers) has lead a full life, leaving a long line of husbands in her wake.

Brought together again, tension mounts, tempers flare and the past is pulled painfully into the present as the matter of their inheritance, tied up in their refugee mother's antiques, comes to the fore.

Sibling rivalry is a unique thing, and Klein brilliantly captures all of its bottled-up bitterness in a sigh or a glare. It's in these subtle crackles of hostility between the sisters that the play really sparkles and Edith has our sympathy being in the incredibly frustrating situation of seeing the worst in someone when all around refuse to notice. Rogers is perfect in her role, creating a character both captivating and intolerable.

The superbly crafted set by Ruari Murchison puts the characters into a confined space, forcing them to rub up against each other, adding literally to the friction between them. Through the windows nothing but the impending grey fog while the antiques sitting precariously on the shelves add to the sense that at any time, all could come crashing down into chaos.

The arrival of the handsome, widowed family solicitor (Walter Van Dyk) and a mysterious eccentric antiques dealer (Gregory Gudgeon) brings a plot of double crossing into play - or is it simply justice? The right and fair thing? Well that depends...

The audience, though they might not want to admit it, recognise the worst in all of them as green eyes and greed take over, but what's really driving them all is loneliness and fear of it, the desperate hope of a brighter future.

The script sways from comedy to tragedy, at times a little too wildly, but these consummate performers are able to keep things on track. It's infectiously funny, brimming with devilish deeds and moral dilemmas and not afraid to plummet the depths of pain. You'll struggle to align right and wrong - but you'd be absolutely right to go and see it.

Equally Divided is at Watford Palace Theatre until February 23. Details: 01923 235455