The title of the story is A Shady Plot. The dictionary defines the words as:

Shady adjective

(a) Full of shade; shaded.

(b) Casting shade: a shady grove.

(c) Quiet, dark, or concealed; hidden.

(d) Of dubious character or of questionable honesty.

Plot noun

(a)

(i) a small piece of ground, generally used for a specific purpose: a garden plot.

(ii) a measured area of land

(b) a ground plan, as for a building; a diagram

(c) storyline- the plan, scheme, or main story of a literary or dramatic work, as a play, novel, or short story

(d) a secret plan to accomplish a hostile or illegal purpose; a scheme.