When marine-biologist Dr. Lena Morales begins dating wealthy entrepreneur Marcus Vale, everything seems too good to be true. He’s handsome, attentive, and utterly fascinating. But shortly after Lena becomes pregnant, Marcus inexplicably disappears—only to return later with no memory of her or their child. As a string of similar vanishings sweeps the globe, a covert UN task force uncovers a horrifying an alien invader is exploiting human fertility to repopulate his dying world. Now Lena must go undercover among the alien’s circle of victims to stop him—before she loses herself and the life growing inside her.