Dallas Buyers Club's Jean-Marc Vallee will direct the adaptation, said The Hollywood Reporter.
Published in 2006, "Sharp Objects" centres on reporter Camille Preaker (Adams) - fresh from a brief stay at a psych hospital - who faces a troubling assignment-- She must return to her tiny hometown to cover the murders of two preteen girls.
For years, Camille hardly has spoken to her neurotic, hypochondriac mother or to the half-sister she barely knows: a beautiful 13-year-old with an eerie grip on the town.
Dogged by her own demons, she must unravel the psychological puzzle of her own past if she wants to get the story - and survive this homecoming.
The drama was optioned five years earlier by Jason Blum's Blumhouse Productions before "Gone Girl" became a worldwide phenomenon.
The drama is being written and exec produced by Marti Noxon, who will also executive produce alongside Flynn.