A veterinarian in space wrangles with ethics, morality and duty, with inter-species collaborative space stations thrown in for good measure.
The Doc is getting on in years, but they are still very committed to ensuring a healthy, balanced existence on the station, amongst all species and their companions. But humans are only human, after all, and Doc takes it upon themselves to try and diffuse the situation before it becomes a potentially disastrous actual situation.
The descriptions were lovely, the characters were well-defined, and the ending was particularly poignant. Long yet engaging.