★★½ (2½ out of 4)
Jessica Chastain is always worth watching. “Heartland,” the Netflix mystery she’s starring in this week isn’t worth her talent, but the Oscar winner for “The Eyes of Tammy Faye”—I’d have given her another gold statue for “Zero Dark Thirty”—plays this B-level whodunit like it really matters. It doesn’t, but if you need an actress to elevate material, Chastain should be first on your call sheet.