Marisa and Jake are a perfect couple. And Kate, their new lodger, is the perfect roommate. Sure, Kate doesn't seem to care about personal boundaries, but Marisa doesn't let it concern her, knowing that soon Kate will be gone, and it will just be her, Jake, and their future baby. Conceiving a baby is easier said than done, though, and Jake and Marisa's relationship is put to the test through months of fertility treatments and false starts. To make matters worse, Kate's boundary-pushing turns into an all-out obsession with Jake, Marisa, and their future child. In her quest to find out who Kate really is, Marisa might destroy everything she's worked so hard to create.