A succubus, werecat, and woman who no one can remember work at a bar together. They alternate between zany hijinks, misguided romance, and trying to avoid being murdered by other creatures of the night.
Two people travel toward the light at the end of the tunnel. They don't like each other, but it's not like they have anyone else to talk to.
Alternatively: Author decides to practice improvisation and snappy dialogue by writing an unplotted story told entirely through a back and forth conversation.