Haven't heard the term "abstract" applied to a plot, unless you mean highly metaphorical? Genuinely curious in case it's something I'd like. What's an example, without giving too much away?

Gnomon by Nick Harkaway has a plot that is intricate and highly metaphorical. Read it for the intellectual plot.

Examples: have you read any Jorge Luis Borges or Italo Calvino?

M. John Harrison deconstructs plot. If you try to read him just for the plot, you will be bored or baffled.