When you've got either Baierlein or his wife, Sallie Diamond, on stage, you've got fine theater. Put them together as Bill and Betty, the hospitable couple in Greek Treats, and the result is an evening of pure pleasure. Entranced by their mythical off-stage friends, Jason and Medea, Bill and Betty rebel against their boring suburban life. Bill dreams of Dionsyian sex, Betty of an all-woman commune where she could unleash her creative impulses. Theirs is the kind of quietly skilled acting that doesn't advertise itself, but you can see the flame of passion shining through Bill and Betty's conventional exteriors.

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