Shay Dunne is a poison pen. Not that she wants to be one. But a recent tragedy in her life has left her hell-bent on dishing out some punishment to the two people she blames. Sending them a letter containing a vague accusation will do the trick.

Shay Dunne is a poison pen. Not that she wants to be one. But a recent tragedy in her life has left her hell-bent on dishing out some punishment to the two people she blames. Sending them a letter containing a vague accusation will do the trick.

Only the letters set in motion a series of unintended consequences, and Shay soon discovers that in the close-knit Irish village she calls home, a community still reeling from Covid, there are sinister secrets everywhere.