Gabi

Gabi is a 2012 South Korean historical mystery drama film starring Kim So-yeon, Joo Jin-mo and Park Hee-soon. It follows an ostensible assassination plot of King Gojong (1852–1919), using coffee brewed by royal barista Tanya. The plan is masterminded by Sadako, a Joseon woman with adopted Japanese nationality, and aided by Ilyich, Tanya's lover.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.