HALLOWELL — Gaslight Theater will present Agatha Christie’s “Murder on the Nile,” opening Friday, Nov. 9, at Hallowell City Hall.

In the show, Simon Mostyn has recently married Kay Ridgeway, a rich woman, having thrown over his former lover, Jacqueline. The couple are honeymooning on a paddle steamer on the Nile.

With them is Canon Pennefather, Kay’s guardian, and Jacqueline, who has been shadowing them throughout the honeymoon. Also on the boat are a rich, ill-tempered old woman with her niece and companion, a rather direct young man and a German who nurses a grudge against Kay’s father and Kay’s maid.

During the voyage, Jacqueline works herself into a state of hysteria and shoots at Simon, wounding him in the knee. A few moments later, Kay is found shot in her bunk.

By the time the boat reaches its destination, Canon Pennefather has laid bare an audacious conspiracy and has made sure the criminals shall not go free.

The play is based on Christie’s 1937 novel “Death on the Nile,” which started off as a play called “Moon on the Nile.” Christie believed it would make a much better book but later decided to revive the play in 1942 while also drafting a theatrical version of “And Then There Were None,” which The Gaslight Theater performed  last year.

Shows, directed by Deborah Howard, are at 7:30 p.m. Friday and Saturday, Nov. 9-10 and 16-17; and 2 p.m. Sunday, Nov. 11 and 18, at Hallowell City Hall, 1 Winthrop St.

Tickets are $12/$10 for seniors over 60 and students with ID. Call 626-3698 or visit www.gaslighttheater.org.