By day, Scarlett is the internet’s favorite "knife-trick" livestreamer, throwing daggers with lethal precision. By night, she is the deadliest assassin for the Shadow Syndicate. When her husband Ethan claims his empire has gone bankrupt, she plunges back into the underworld to feed the family—only to discover his bankruptcy is a cruel lie to force a divorce, all while he lavishes millions on his celebrity mistress, Chloe. Heartbroken but cold as steel, Scarlett decides to orchestrate her own vanishing act. But her escape path collides with Sebastian, the ruthless, mesmerizing crown prince of the city's most feared billionaire dynasty. He offers her the ultimate sanctuary: a fake marriage to claim his inheritance. But in a den of wolves where love is a lethal weapon, who is protecting whom?