Archaeologist Adrian reunites with his ex-partner Ethan during the excavation of a Saqqara royal tomb complex. Among the three chambers, the nameless third tomb holds bones coated in silver oxide and a silver casket containing a heart, unearthing a forbidden ancient Egyptian love erased by history: Pharaoh Amunnehet marries a Hittite princess for political alliance, while his beloved vizier Merira willingly becomes a living sacrifice, having the royal wedding vow carved into his flesh in silver, just to lie beside his king in death. Across two thousand years, this love and regret also force the two modern men to confront their lingering feelings amid worldly constraints.