Eleanor, a wealthy heiress, is murdered by her husband Arthur through a 90-day death insurance scheme to seize her inheritance. Desperate, she hires Julian, a public relations professional with a terminal illness, to join her in revenge. The two impersonate each other, orchestrate an investment scam, recruit Chloe (their lover), gather evidence, and work together to bring down their villain within the 90-day countdown. Through trials of life and death, their alliance transforms from allies to lovers, achieving redemption.