When your best friend of 20 years was never who you thought she was.
MARISOL has always trusted her instincts. Her best friend VERINA has spent twenty years making sure she doesn't.
When Marisol finally begins to see the pattern — the rewritten conversations, the manufactured doubt, the slow erosion of her own certainty — she realizes the friendship was never what she believed it to be. And that walking away may cost her the version of herself she built inside it.
THE VIBE
Rosemary's Baby meets Gaslight, with the psychological precision of Portrait of a Lady on Fire and the dread of something that has been true for a long time before anyone said it out loud.
The visual grammar is the argument: locked-off symmetrical frames when Marisol is present, chaotic handheld when Verina enters. The camera takes a side. The horror is not supernatural. It is the specific terror of a woman who trusted her own memory and was systematically taught not to.
Mariana Grajales is a writer-director and editor based in Alameda, California.
Her experimental thriller-horror short TUCKED has been selected to screen at the Marina Del Rey Film Festival, Summer 2026.
TRUTH DECAY is her debut narrative short as writer-director.
Her work explores intimacy, coercive control, and the psychology of female friendship.
Director’s Statement
I wrote TRUTH DECAY instead of making the call.
I had her number pulled up. Twenty years of friendship, and I still had the impulse to call, to explain, to try one more time to be understood by someone who had spent twenty years lying to me, rewriting events I had witnessed, making me doubt what I knew to be true. I put the phone down. I opened a script document instead.
I later learned there is a name for what I had been living inside. And that name has millions of women behind it.
I would hold both versions of reality in my head at once, hers and mine, until mine started to feel less certain. That is not a personality conflict. That is a pattern.
We are raised to be loyal. We are raised to keep the peace. We are raised to believe that the health of a relationship is our responsibility to maintain. Those are not weaknesses. But they are the exact vulnerabilities that a person like Verina will find and use. We are more susceptible because we were taught that keeping someone close is worth the cost of our own certainty.
I am making this film for every woman who has stood in a room while watching someone rewrite what just happened & said nothing.
This film does not tell her she was right. She already knows she was right. It tells her she was not alone in the room. That someone else saw it too.
That is what I needed. That is what I could not find. So I made it.