This review is part of our coverage of the 2022 Sundance Film Festival. The Pitch: Sarah (Karen Gillan) is dying of a rare, incurable disease. It’s no big shakes, though, because up to now she hasn’t really lived: she has a strained, distant relationship with her boyfriend (Beulah Koale), her mother is disapproving, and she can’t even be bothered to cry when she receives her prognosis. Still, she unthinkingly accepts an offer to go through the process of “replacement”: growing a clone of her that will learn the ins and outs of her life, then take over when she dies. But ten months of watching her double (also Gillan, obviously) insinuate herself into her life, Sarah learns that she’s making a full recovery. But she’s got two problems: a) her boyfriend and family like the double more t...