First Look: Rocsi's Dramatic 'Last Letter'

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ET’s own Rocsi Diaz has been moonlighting! The versatile Rocsi shows her dramatic side in the psychological thriller The Last Letter amid a cast that includes Omari Hardwick, Sharon Leal and Gary Dourdan, and we have a brand-new clip from the movie, on VOD and DVD December 17. Watch now!

PICS: Rocsi's 2013 MTV Video Music Awards Photos

The suspenseful shocker follows a newlywed couple, Catherine and Michael (Leal and Hardwick), whose marriage is threatened by Michael's disapproving mother (played by Lynn Whitfield) and Catherine's terrifying secret -- a crippling sleep disorder that blurs nightmare and reality that surfaces when she's under tremendous pressure.

When a terrifying incident from her past returns to haunt her, Catherine turns to her foster brother and closest confidant, George (played by Dourdan), for help. But will his methods and her handling of her problems ultimately be her own undoing?

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Directed by Paul D. Hannah, The Last Letter also stars Tatyana Ali, Richard T. Jones, Bill T. Cobbs, Marc Singer and Lynn Whitefield.