Ultrasound is a 2021 American science fiction film directed and produced by Rob Schroeder in his feature directorial debut.

It stars Vincent Kartheiser, Chelsea Lopez, Breeda Wool, Tunde Adebimpe, Rainey Qualley, Chris Gartin, and Bob Stephenson.

Newly-hired Dr. Shannon works with both under the guidance of lead researcher Dr. Conners, who is developing hypnotic therapy technology using high-pitched audio frequencies.

He used her as a subject and, when she proved to be particularly susceptible, put her into a permanent delusion that he was her English teacher, on whom she had a crush, ultimately leading to their marriage when she was 19.

Dr. Connors' team kidnapped the two so that they could reverse engineer the work Art had done on them, help them regain their original memories, and use the knowledge to positively impact society.

However, during a demonstration to military investors, Dr. Connors reveals that Glen's paralysis is actually a hypnotic suggestion which his team induced and which they can turn on and off with sound.

In a secondary plotline, aspiring senator Alex Harris has begun an extra-marital affair with a young woman named Katie, who is now visibly pregnant with his child but is also somehow oblivious to it.

Desperate to maintain his image, Harris had hired Art to prevent Katie from realizing that she is pregnant and to keep her willfully sequestered during his campaign.

Ultrasound is based on the four-book comic Generous Bosom by Conor Stechschulte, who began writing the screenplay in the summer of 2016.

The website's consensus reads: "An auditory funhouse of intrigue, Ultrasound pushes narrative boundaries to deliver an audacious look at the horrors of gaslighting.