'' My Dear Enemy '' is an exercise in subtle comedy , anchored by the delightful chemistry of the pitch-perfect lead performers . Jeon Do-yeon , as the sensible , even-tempered Hee-soo counterbalances the hysterical mother of a murdered child she played in '' Secret Sunshine '' , for which she was named best actress at Cannes in 2007 . Ha Jung-woo , too , is winning as the compulsively charming , if unfailingly inept Byung-woon ( a role also in stark opposition to his previous outing as the serial killer antagonist in Na Hong-jin 's '' The Chaser '' )
Cannes
2007 Cannes Film Festival
My Dear Enemy