The Greek Revival charmer that’s home to the husband-and-wife actors Michael Tucker and Jill Eikenberry looks modest from the road, rather like a playhouse for a sophisticated child.

“We love that — our friends keep forgetting what we have here,” said Ms. Eikenberry, who starred for eight seasons (from 1986 to 1994) with Mr. Tucker on the NBC series “L.A. Law,” and who is currently part of the ensemble cast of “Fern Hill,” a comedy-drama about (in no particular order) love, friendship, aging and sex, written by none other than her husband. The Off Broadway production, at 59E59 Theaters, runs through Oct. 27.

But as you walk through the cozy original structure, built in 1838, and head slightly west toward the 2009 addition — dining room and spacious, airy kitchen with French doors — the house, in Easton, Conn., seems to unfold while smoothly bridging centuries.