Quantum physics: a love story.
By fits and starts, jumping back and forth on their timeline, we learn how Vicky and Erica met, fell in love, got married, had children, got divorced, and rekindled their friendship. Because we know how the marriage ends two decades after it begins, jumps to events closer to the beginning of the relationship take on an added poignancy, because you know the sweetness doesn't last. And yet, as the very last moment of the play implies, the relationship wasn't a failure, because it existed, and was a good thing. By treating a relationship as if it were a series of waves and particles, as opposed to one discrete timeline, Barfield has created a nuanced portrait of a love in all its complications.
And things are quite complicated for Vicky and Erica. Vicky is a woman of color and Erica is white. When they first meet, Vicky is Erica's boss. Vicky's family is very traditional and doesn't know she's queer. Erica is somewhat scattered and doesn't really know what she wants from life, while Vicky is focused on smashing all the glass ceilings evar. These differences lead to killer dialogues that create rifts, cement over them, and crack them open again as time goes by.
From a staging pov, Barfield has created quite a challenge for a director, and it will take a gifted, experienced one to fully bring her vision to life. To open up casting, Barfield has written certain passages a few different ways, to allow for Vicky being cast as African American, Latina, or Asian American. This preserves one of the play's central themes while allowing a director to cast the best actress for the part without reservation. Libraries with significant collections of plays will want to include this as an example of the creative, inclusive work going on in 21st-century drama, but the work is most suitable for medium-to-large collections in urban areas. Enthusiastically recommended.