I’m going to start today by asking for a show of hands. Who here has seen a film where the twist ending was one of the characters was secretly dead the whole time? Ok, keep them up. One, two — hey you on your phone, are you raising your hand or saying hi to somebody? Ok, that’s three … roughly three hundred million! Great!

“My Dead Friend Zoe” is not one of those movies. Kyle Hausmann-Stokes’ debut feature stars Sonequa Martin-Green (“Star Trek: Discovery”) as Merit, an Army veteran struggling with Ptsd. Her best friend Zoe — spoiler alert for anyone who hasn’t read the title — is dead, but still with Merit at all times. She’s played by Natalie Morales (“No Hard Feelings”) and despite the whole “being dead” thing she’s actually quite lively, providing a running commentary on Merit’s life and anxieties.

The film reveals Zoe...