Europe: This play is focused on the question of mobility, and the dangers associated both with being a migrant and with staying home. The most obvious dangers here are those faced by the three characters uprooted from their homes--Katia and her father Sava, who are refugees fleeing the war (what war isn't specified, because to a certain extent it doesn't matter, since all wars produce refugees), and Morocco, who is a travelling trader who identifies more with Katia than with the people in this town where he grew up. Both Sava and Morocco are beaten by local skinheads/nationalists, and Katia only manages to avoid some kind of violence, whether physical or sexual, because she runs away while Morocco is being beaten. But the more subtle danger, the one that isn't as overtly coded as a danger is the rise of the fascistic and xenophobic nationalism. In their desperate attempt to keep the town as it was (despite the fact that the changes have nothing to do with immigrants, but have to do with the economic streamlining of borders in a globalized economy) Horse and Berlin end up committing an act at the end of the play which will forever change the town--they become the ones who bring about the very change they are trying to avoid.
The Architect: This is a play about the difficulty of building things the way you envision them. There is one direct story line about an architect who designed a group of council flats to be beautiful, communal, and well built, but shoddy work and under-funding for the project turned the estate into a ghetto whose residents want it torn down. But around this story there are a number of relationships that break down or fail to start up properly. Part of the issue is that the Black family--Leo Black being the architect--seems mostly to be emotionally stunted. Their emotional isolation, confusion, and misanthropy make it difficult for them to form meaningful relationships.
The Cosmonaut's Last Message to the Woman He Once Loved in the Former Soviet Union: In the third play in this collection, Greig takes on the difficulty of communicating. Throughout the play this takes several forms, from Casimir's (one of the two cosmonauts drifting through orbit on a forgotten mission) desperate attempts to fix the radio so he can talk to his daughter, to her attempts to maintain communication with him by waving at the sky when the orbiter passes overhead, to the stroke Patient's inability to speak or recall what has happened. But what's really interesting about these failures of communication is that encoded within them are sets of related ideas, images, and expressions. For instance, Eric--a Norwegian World Bank civil servant--describes his first orgasm as involving his legs going numb and him feeling blue, which is the same description Bernard--a UFO enthusiast who spends all his time trying obsessively to communicate with aliens--gives for how he experienced his stroke. So that's an interesting element here, that even as the characters struggle to communicate, their experiences remain overlaid with the same kinds/shades of meaning.