Is Shortwave actually a sci-fi movie?

It uses sci-fi elements like radio frequencies and theoretical physics, but it functions much more like a psychological horror film. Don't expect aliens or high-tech gadgets.

Are there many jump scares?

Not many. The movie relies on 'unnerving' atmosphere and a sense of dread rather than sudden loud noises to scare the audience.

Why is the IMDb score so much lower than the Rotten Tomatoes score?

This usually happens with niche indie films. A small group of fans can drive up the RT percentage, while a broader audience on IMDb might find the low budget and slow pacing disappointing.

Is there any nudity or sexual content?

The film focuses almost entirely on psychological tension and thriller elements; however, the mature themes and intensity are what earned its high age recommendation.

Shortwave – WISE Score & Parent Review | Screenwise

Shortwave

Name: Screenwise
Author: Screenwise

movie2016

24%

WISE Score

A low-budget psychological thriller about radio frequencies that is more interested in being unnerving than actually making sense.

Shortwave

movie

18, 2016

24%

WISE Score

A low-budget psychological thriller about radio frequencies that is more interested in being unnerving than actually making sense.

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Screenwise Verdict

Shortwave is one of those indie thrillers that has a killer elevator pitch—creepy radio signals meet psychological breakdown—but struggles to stick the landing. With a 3.9 on IMDb, it is clearly a polarizing experience that skews toward the 'slow and confusing' end of the spectrum.

For parents, the takeaway is simple: this isn't for kids. It is a mood piece that deals with heavy, dark themes and high-tension scenarios. Unless you are a die-hard fan of niche psychological horror, this one is probably a skip.

Age Fit

This is strictly for adults and older teens. Common Sense Media marks it as 17+, and the heavy themes of loss and psychological breakdown make it a poor fit for a family night.

WISE Breakdown

Wholesome

This is a psychological thriller centered on tension, dread, and the unsettling origins of radio frequencies. It is designed to be unnerving, not emotionally healthy or uplifting.

Imaginative

The premise of using shortwave radio 'numbers stations' as a hook for a horror movie is a clever, high-concept starting point that taps into real-world mysteries.

Safe

Common Sense Media rates this for ages 17 and up. Expect high psychological intensity, disturbing imagery, and themes of grief that are inappropriate for younger audiences.

Enriching

While it explores scientific obsession and grief, the low critical reception suggests it doesn't offer much beyond standard genre tropes and a slow-burn atmosphere.

Parent Info

✓

Why It Might Be Great

Atmospheric tension for viewers who enjoy slow-burn psychological dread over jump scares.
High-concept premise involving the real-world mystery of numbers stations and shortwave radio anomalies.
Strong visual style that punches above its weight class for an indie production.

⚠

What to Watch For

The 17+ age rating is there for a reason; the movie leans heavily into disturbing psychological states and trauma.
A slow pace and ambiguous plot can make this a frustrating watch if you are looking for a straightforward horror flick.
The 3.9 IMDb score suggests that while the audience score is high, many viewers found the execution lacking or the ending unsatisfying.

Conversation Starters

"Why do you think the origins of technology like shortwave radio can feel so creepy?"
"How does the movie use sound and silence to make you feel uncomfortable?"
"Do you think the main characters were driven by curiosity or obsession?"

Deep Dive

The Mystery of Numbers Stations

Shortwave taps into a very specific corner of internet lore: numbers stations. These are shortwave radio stations of uncertain origin that broadcast sequences of numbers, words, or Morse code. They have been a staple of conspiracy theories and spy fiction for decades. The movie tries to use this eerie real-world phenomenon to ground its story about a couple moving to a secluded home to recover from a tragedy.

Atmosphere Over Action

If you go into this expecting a monster movie or a slasher, you will be disappointed. It is a psychological chamber piece. Most of the runtime is dedicated to the characters' deteriorating mental states and the unnerving sounds coming through their equipment. While the 95% audience score on Rotten Tomatoes might look enticing, it is likely the result of a very small, niche group of fans. The much lower IMDb score is a more realistic indicator of how the average viewer will feel about the pacing and the narrative payoff.

Why the 17+ Rating?

While it doesn't have the blockbuster gore of a Saw movie, the rating comes from the sheer 'unrelenting' nature of the tension. It deals with the kind of psychological horror that sticks with you—obsessive behavior, hallucinations, and the crushing weight of grief. It is the type of media that is 'safe' in terms of not having exploitative content, but 'unsafe' for anyone who isn't prepared for a deeply depressing and stressful ninety minutes.

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