Thread of Lies (Korean: 우아한 거짓말; RR: Uahan Geojitmal; lit. Elegant Lies) is a 2014 South Korean crime drama film based on the 2009 bestselling novel Elegant Lies by Kim Ryeo-ryeong. Directed by Lee Han, it starred Kim Hee-ae (in her first film in 21 years), Go Ah-sung, Kim Yoo-jung and Kim Hyang-gi.

Thread of Lies deals with the aftermath of a suicide by a 14-year-old girl. The nonlinear narrative follows her mother and older sister who set out to solve the mystery of her death, insinuating themselves into the life of the girl who bullied her.