The opening night performance is at 8 p.m.
"A Song at Twilight" is a co-production with the Hartford Stage Co., where it ran earlier this year and was well received, the playhouse said in a news release.
The play explores the nature of passion, the cruelty of love, and the price of hidden secrets. In his long career, Sir Hugo Latymer (played by Brian Murray) has achieved more than most writers even dream of -- money, fame and a reputation beyond reproach.
But his carefully constructed ivory tower is imperiled when a long-ago love, Carlotta Gray (Rashovich), threatens to shed a public light into the most scandalous corner of his private past. It is a revelation that could bring it all tumbling down.
Lamos in a news release called the play "a powerful and surprisingly moving work from the 20th century's master of comedy, written at the end of his long and dazzling career."
The play is appropriate for ages 16 and up, the playhouse said. Running time is approximately 90 minutes.
Murray was inducted into the American Theatre Hall of Fame in 2004. Among his credits are three Tony Award-nominated performances: "Rosencrantz and Guildenstern Are Dead" in 1968, "The Little Foxes" in 1997 and "The Crucible" in 2002. He appeared at Westport Country Playhouse in "The House of Blue Leaves" and a Script in Hand playreading of "Angel Street."
Dillon was nominated for the 1982 Tony Award for Best Featured Actress in a Play for "Crimes of the Heart." She also appeared on Broadway in "Da," "Hay Fever," "The Miser," "Our Tow," and "Agnes of God." At Westport Country Playhouse, she appeared in "Once a Catholic," "Return Engagements," "Speed-the-Plow," "Angel Street," "Our Town," and script-in-hand playreadings of "A Song at Twilight," "Angel Street" and "Morning's at Seven."
Rashovich's Broadway credits include "Conversations with My Father," "Cymbeline," "The Road to Mecca," "The Anarchist" and "Old Acquaintances." Off-Broadway she won an Obie Award for her performance in "A Shayna Maidel.
For performance schedules and tickets, visit www.westportplayhouse.org