In the afternoon, at a café, a young woman waits for her date. As time passes and he still hasn't arrived, her mind races with countless possibilities. Finally, she decides to act on a troubling thought that has been lingering in the back of her mind…

A male urologist and his dentist husband were madly in love, but their relationship takes an unexpected turn when a video of theirs goes viral on social media. As the spotlight grows brighter, the allure of fame begins to infiltrate one's desires.

In the early 1980s, hundreds of the so-called female revenging/exploitation films were produced in Taiwan. The 2020 version was based on the old genre to recreate a fantasy of the bloody revenge. The film is one of Su Hui-Yu’s “Re-shooting” series, which re-visits historical sources in Taiwan during the old days around the 1970s-1980s while the country was under martial law governance.

By Heart follows Catherine as she tries to figure out a way to hold on to her American roots and identity, after being brought to Taiwan due to her parents' separation, by resisting an indoctrinating Confucian text she has to memorize at school.