Sender Review: Confounding Addiction Story

Russell Goldman’s Sender boasts a moving story and impressive performances, but fails under the weight of a chaotic and frustrating edit.

We meet Julia (Britt Lower, of Severance) three weeks after she was fired and subsequently chose sobriety. She is set up in a rental, thanks to her slightly overbearing sister, Tatiana (Anna Baryshnikov, of Our Hero, Balthazar), and needs to furnish it. However, as she begins setting up her new home, she begins receiving packages filled with items that she never purchased. While she tries to convince the abrasive Whitney (Rhea Seehorn, of My Adventures with Superman) to be her sponsor, Smirk deliveryman Charlie (David Dastmalchian, of Late Night with the Devil) helps her try to unravel the mystery of who is sending her these packages. 

There is a lot packed into the 94-minute run time of Sender, and while some elements are incredibly effective, the frenetic editing used undercuts the tense performance that Lower offers throughout. The choice is no doubt meant to underline the growing paranoia that Julia is experiencing as the packages increasingly seem to push her away from her sobriety, forcing her to remember moments from her time as the best party girl in the office. However, it makes elements of the movie difficult to follow. 

It is a shame that there is so much going on, because there are parts of the story that feel like they are muddled because of Goldman’s directing choices. I particularly appreciated the relationship between Tatiana and Julia. The way that Goldman writes that is remarkably intense, as we see the younger sibling constantly trying to fix the screwed-up older sibling, but also getting in the way of that healing. While I haven’t gone through the process of recovery, I have been the disappointing older sibling, and the tension that exists in a largely loving relationship feels very well realized.

However, the mystery at the center of Sender (who keeps sending these packages?) feels incredibly obfuscated by the stylistic choices used. While it is common to lead viewers down various rabbit trails, these diversions are so tangled up that when the reveal finally happens, it is hard to trust it as an actual answer. Maybe the point is that it doesn’t matter, but if so, that didn’t work for me. 

I know that the day of the Hollywood star is over for most, but sometimes the presence of an actor will be enough of a reason for me to be interested in a movie, and that was definitely the case with Sender. Dastmalchian has been pursuing a number of fascinating characters lately, and this is no different. Charlie is off in a way that is hard to nail down, and that is almost exclusively due to Dastmalchian’s performance. Seehorn channels some of her character Carol from Pluribus for this role, and it works brilliantly.

But the star of Sender is undoubtedly Britt Lower as Julia. People watching because they love her in Severance will not see Helly R or Helena on screen, but it is still a powerhouse performance that will keep your eyes glued to what she’s doing next. As Julia slowly unravels over the course of the movie, Lower never resorts to overacting, always keeping herself on the edge of madness, never quite making the leap. The restraint that she shows is truly impressive. That said, stay for the credits, because she is less restrained in those moments, and it is delightful to watch.

While there are some really wonderful aspects to Sender, it ultimately feels like those are hidden under a layer of confounding directing and editing choices that leave it far messier than the story and actors deserved. Julia struggles to have people trust her and her sobriety, even sometimes failing to trust it herself. I wish that Goldman had trusted his story and the audience enough to speak for itself.

Sender had its World Premiere at SXSW on March 14, 2026. The film is currently seeking distribution.