The movie opens with Ah Yu, portrayed by Taiwanese singer **Tarcy Su**, being freed from incarceration. The film doesn’t explain the reason for her imprisonment or the length of her sentence. She then goes to the house of An-an (Yi-Ching Lu), a kind and maternal woman she had met while in prison. An-an welcomes her and provides employment at the hostess bar that she runs. Following a disappointing arranged date, Ah Yu leaves the bar and finds work at a computer factory. The core of the story lies in her connection with a younger supervisor there, alongside her steady and supportive relationship with An-an. _Blue Cha Cha_ demands a certain level of tolerance from its viewers. This is essentially a film that unfolds deliberately, without providing much explanation for events as they occur. Apart from a vague statement towards the end of the movie revealing why Ah Yu was incarcerated, we never discover anything about her history, and it’s evident throughout that she lacks direction or clear goals for what comes next. She seems to simply exist, taking medication, struggling with mental instability, but consistently attempting to be pleasant, hoping each day will bring some satisfaction. _Blue Cha Cha_ isn't a cheaply made independent film; it boasts impressive production quality and is visually striking. The filmmaking style is graceful and inventive, and the photography is sharp and vibrant. These kinds of movies depend on strong characters and compelling performances to work well, and _Blue Cha Cha_ provides them. Yi-Ching Lu, who has appeared in several films by Ming-liang Tsai, consistently delivers a solid performance. She’s resilient and willing to take risks as an actress. However, the standout is **Tarcy Su**. She manages to make us invested in a character about whom we learn very little. We might not always understand what's happening inside her head, but we are certain that she is experiencing something deeply. It’s remarkable how well she conveys a confused yet determined state of mind without revealing any specifics. There's one scene where she's lying next to a man in bed, staring at him as he falls asleep and wakes up again. Her gaze has an unsettling genuineness that offers no clue as to its origin.

Source on TMDB