Hirugao: Love Affairs in the Afternoon (2014) ชู้รักบ่ายสามโมง (สัมพันธ์รักยามบ่าย)

Premise: Sawa Sasamoto is a housewife a little bored with her typical life routine. One day at work, she gets the urge to steal a lipstick and while leaving work, she gets caught up in a scene with a strange woman named Rikako Takikawa. Rikako tells Sawa that if she helps her out, she won’t tell her manger about the stolen lipstick. Police are called and as the police interview is conducted, Sawa learns that Rikako was having an extra marital affair. These pair of woman keep crossing paths and eventually Rikako leads Sawa into having her own extra marital affair with a biology teacher from a local high school.