The pick of the week's stage events from around Sussex, updated every Friday.

THE OPEN COUPLE, Marlborough Theatre, Brighton, July 15-20
A farcical one-act play about a husband and wife competing for power and righteousness.

Written by Italian Nobel Prize winner Dario Fo and his wife Franca Rame, the play's fascinating caricatures exposes the arrogance of men and irrationality of women.

Ultimately, the play explores whether there is such a thing as the perfect relationship.

Tickets cost £6 (£5 concessions). Call 01273 647100.

JUST BETWEEN OURSELVES, Theatre Royal, Brighton, until July 13
TV host Les Dennis and former-Bread star Jean Boht star in Alan Ayckbourn's closely observed comedy of suburban life.

The Family Fortunes host plays the relentlessly cheerful Dennis, who spends all his time unskillfully pottering about in the garage, oblivious to the fact his wife Vera is being driven crazy by his possessive mother.

Tickets cost £12 to £21. Call 01273 328488.

WHO KILLED AGATHA CHRISTIE?, Theatre Royal, Brighton, July 14-20
Lionel Blair casts off his happy-go-lucky TV persona to star alongside The Detectives actor George Sewell in this thriller.

John (Sewell) is a successful actor and writer who becomes obsessed that drama critic Arthur (Blair) has damaged his career.

He concocts an ingenious ruse to trap Arthur but it soon transpires his goal has more sinister notions.

Tickets cost £7.50 to £20.50. Call 01273 328488.

BUDDY HOLLY AND THE CRICKETERS, Congress Theatre, Eastbourne, July 12
Relive the highlights of the legendary performer's life in this rock 'n' roll tribute show.

Holly tragically died aged just 23 in a plane crash which also claimed the lives of fellow musicians Ritchie Valens and J P Richardson (The Big Bopper).

However, his music lives on in the form of his greatest hits, including Peggy Sue and That'll Be The Day.

Tickets cost £10, £12 and £14. Call 01323 412000.