It’s a Summer of Mystery on PBS

Masterpiece Mystery! presents a summer of intrigue and suspense by welcoming back super sleuths Poirot and Miss Marple with all new episodes. Joining the gifted gumshoe line-up is Rufus Sewell as Aurelio Zen in the three-part miniseries, “Zen” set for July 17-31, 2011.

New Episodes:

Masterpiece Mystery! “Poirot XI” – David Suchet (The Way We Live Now) returns as suave Belgian super sleuth Hercule Poirot in three brand-new mysteries based on the novels by Agatha Christie.

• “Three Act Tragedy” premieres June 19 at 9:00 p.m. ET.
• “The Clocks” premieres June 26 at 9:00 p.m. ET.
• “Hallowe'en Party” premieres July 3 at 9:00 p.m. ET.

Masterpiece Mystery! “Agatha Christie’s Miss Marple, Series V: The Pale Horse” – Julia McKenzie is back as Agatha Christie’s detective with a gentle smile and probing mind in the all-new episode “The Pale Horse.” Miss Marple’s old friend is found murdered, and when she receives a list of names sent by the victim before his death, Miss Marple seeks justice. Watch July 10 at 9:00 p.m. ET.

Masterpiece Mystery! “Zen” – What does an honest cop do when his bosses are on the side of the lawbreakers? Outwitting prosecutors, politicians, mobsters, and run-of-the-mill kidnappers and killers, Detective Aurelio Zen brings justice to modern-day Italy, whether the authorities want it or not, on Zen, a trio of spellbinding cases based on the bestselling novels by Michael Dibdin. Watch starting July 17 at 9:00 p.m. ET.

Don’t want to wait for the new shows? Watch an encore of Masterpiece Mystery! Poirot: Appointment With Death on June 5 at 9:00 p.m. Hercule Poirot is in the Middle East for an archaeological excursion with Lord Boynton (Tim Curry), whose rich, overbearing wife (Cheryl Campbell) is soon found stabbed to death.

Then tune in for Masterpiece Mystery! Poirot: The Third Girl on June 12 at 9:00 p.m. A demon-haunted heiress is convinced she has committed murder, but Poirot believes she is innocent. Eccentric crime novelist Ariadne Oliver (Zoë Wanamaker, “Gormenghast”) helps the great sleuth crack the case.