Speculations

at Marylebone Theatre

London Available until Sun 17 Jan

Book Speculations tickets for a thrilling political mystery in London

Step into a world of secrets, power and conspiracy as Speculations arrives at Marylebone Theatre for its world premiere season.

Experience a gripping new political thriller inspired by real historical events
Follow legendary journalist Dorothy Kilgallen as she investigates America's most controversial deaths
Discover a story packed with mystery, intrigue and dangerous secrets
See acclaimed actress Janie Dee take on the role of Dorothy Kilgallen
Enjoy a compelling production from an award-winning creative team

Blending history, journalism and suspense, Speculations takes audiences on a thrilling journey through one of the most fascinating investigations of the twentieth century.

See Speculations at Marylebone Theatre

Dates: 30th October 2026 - 17th January 2027
Venue: Marylebone Theatre, 35 Park Road, London, NW1 6XT
Accessible Performance: Captioned performance on 24th November 2026 at 7:30pm

New York, 1965. The public believes the answers have already been given regarding the deaths of Marilyn Monroe, John F. Kennedy and Lee Harvey Oswald. But celebrated journalist and television personality Dorothy Kilgallen isn't convinced. Determined to uncover the truth, she embarks on the biggest investigation of her career.

As Dorothy follows a twisting trail from Hollywood to the White House, from the Kennedy dynasty to the New Orleans underworld, she uncovers a web of connections involving some of the most powerful figures in America. With danger closing in and powerful people desperate to silence her, the pursuit of truth becomes increasingly personal and perilous.

Starring Janie Dee as Dorothy Kilgallen, this compelling new production is written by Torben Betts and directed by acclaimed theatre director Trevor Nunn. Together they bring one of the most intriguing untold stories in modern American history to the London stage.

Whether you're fascinated by political intrigue, true-crime stories or thought-provoking drama, Speculations promises a captivating night at the theatre.

Book your Speculations tickets today and decide for yourself where the truth really lies.

Location

Marylebone Theatre

Rudolf Steiner House,
35 Park Road,
London,
Greater London,
NW1 6XT

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How to find us

Marylebone Theatre is located at Rudolf Steiner House, 35 Park Road, London, NW1 6XT.

By car: Use postcode NW1 6XT in your sat nav. Limited parking is available in the surrounding area and public transport is recommended where possible.
By train: London Marylebone Station is approximately a 10 to 15-minute walk from the theatre and provides direct connections across London and the South East.
By Underground: Baker Street Station is the closest Underground station and is just a short walk from the venue. Marylebone and Regent's Park stations are also nearby.
By bus: Numerous London bus routes serve Park Road, Baker Street and Regent's Park, providing excellent access from across the capital.
By foot: Marylebone Theatre is located close to Regent's Park, Baker Street and Madame Tussauds, making it easy to reach from many of central London's most popular attractions.

Facilities

Theatre bar
Accessible seating
Accessible toilets
Wheelchair access
Air-conditioned auditorium
Refreshments available
Hearing assistance facilities
Excellent public transport links

More Info

What is Speculations about?

Speculations follows renowned journalist Dorothy Kilgallen as she investigates the deaths of Marilyn Monroe, John F. Kennedy and Lee Harvey Oswald. Her search for answers leads her into a dangerous world of political intrigue, power and conspiracy.

Is Speculations based on a true story?

Yes. The play is inspired by the real-life investigations carried out by journalist Dorothy Kilgallen, who questioned the official narratives surrounding several high-profile American deaths.

Who stars in Speculations?

Janie Dee stars as Dorothy Kilgallen.

Does Speculations offer carer tickets? If so, how do I book a carer ticket?

If you require companion/carer tickets, please book directly with Marylebone Theatre.

Where is Speculations being performed?

Speculations is being staged at Marylebone Theatre, 35 Park Road, London, NW1 6XT.

Is there an accessible performance?

Yes, a captioned performance takes place on 24th November 2026 at 7:30pm.

When is Speculations showing in London?

Speculations runs from 30th October 2026 until 17th January 2027 at Marylebone Theatre.

Are these the cheapest tickets for Speculations?

Yes, we guarantee price match or better. If you can find them cheaper, we want to match it so please get in touch here.