A vacation to Pattaya for a couple quickly spirals into chaos as hidden truths are revealed. Soo-jeong and Tae-hyeon plan an overseas trip with Sang-jin and Ji-hyeon to celebrate Ji-hyeon’s birthday. Unfortunately, Ji-hyeon is unable to join at the last moment, so the three continue without her. Once there, a deceitful local guide swindles them out of their belongings. They then encounter Lizzie, who immediately captivates Sang-jin. As boundaries are crossed, Soo-jeong, who secretly harbors feelings for Sang-jin, discreetly records their encounter. She uses the footage to blackmail Sang-jin, threatening to expose the affair to Ji-hyeon unless he agrees to be with her. When Tae-hyeon uncovers the truth, their idyllic getaway descends into a nightmare.