Jessica Chastain has come on board for Lucia Puenza's dramedy `Loosing Clementine.` Based on Ashley Ream's novel of the same name, the movie will tell the story of a famous artist, Clementine Pritchard (Jessica Chastain), who gives herself one month to settle her messy affairs before ending her life as she battles depression.

But while tying up loose ends, Pritchard uncovers secrets about her family and a tragedy that impacted her mother and sister. The cliffhanger becomes, will we lose the sharp-tongued artist or find her? Lucia Puenza will be directing a script from Ann Cherkis. Christopher Tuffin, Chastain and Kelly Carmichael will produce, with Michael Miller, Jeeny Miller, Jake Martin, Cherkis and Maryam Lieberman serving as executive-producer.

Chastain recently starred in franchise movies `Dark Phoenix` and `It: Chapter 2`. She will also be seen in upcoming movies Eve, 355, and The Eyes of Tammy Faye.