A quietly introspective portrait of a Taiwanese woman with no fixed goals in life, “Blue Cha-Cha” goes on at least a reel too long but has a distinctive feel for character and place that sets it slightly apart from most other auteurist essays from the island. Third feature by director Cheng Wen-tang (“Somewhere Over the Dreamland”) is his most proficient yet, and scattered fest dates look likely.
After a spell in jail, thirtysomething Pei-yu (singer Tarcy Su), stays in the southern port of Kaohsiung with An-an (vet Lu Yi-ching, “The Missing”), a tough, older woman who runs a girly bar. Heartbroken when a businessman (Leon Dai) drops her after a (paid) one-night stand, Pei-yu is later seduced by the gentler Hao (Lee Wei), her young supervisor at a computer factory. As a trusting, totally instinctive woman who’s a pushover for men, Su is charismatic, even though the script — as is typical for helmer Cheng — never backgrounds her or any other characters. Drifting, metaphysical tone is echoed by the port setting, with constant water traffic evocatively captured by lenser Lin Cheng-ying. Chinese title means “Deep Sea.”