Eliza knows the three laws of magic, "Conservation of Energy, Focused Intention, and Rebirth requires sacrifice," like she knows the periodic table. Magic can protect her, improve her grades and luck, even fill the hole grief has carved in her heart from the unexpected death of her boyfriend. But everything changes when she and her best friend Claire accidentally summon a dangerous, flirtatious demon into her bedroom. 
Eliza is willing to do whatever it takes to resurrect her boyfriend--even forbidden magic--and Claire has an even bigger secret that she can no longer bury. Their bond is put to the test by demons both present and personal, portals to alien dimensions full of abominations, and the turbulent attraction blooming between Eliza and the unsummoned demon. But neither of them are truly prepared for the magnitude of transgression necessary to invoke "Rebirth requires sacrifice."