Okay so the main plot of 'Beating Hearts'... it's kind of a mess to describe simply because the author throws you right into the deep end. There's this guy, Leo, who wakes up from a coma with zero memory and a brand-new, highly illegal mechanical heart. The story is basically his desperate run from the corporation that wants their prototype back and the black-market surgeon who implanted it. It's a chase across this grimy, neon-soaked city, with Leo piecing together his own past while realizing his new heart comes with some... disturbing side effects, like accessing the memories of its previous owner. So you've got corporate espionage, body horror, and a weird, reluctant romance with a street medic who finds him bleeding out in an alley. The plot twists get pretty wild, especially when he figures out why he was chosen for the heart in the first place.
Honestly, the central mystery about his identity and the heart's origin is what hooked me, even if the middle section drags a bit with too many narrow escapes. The ending leaves you questioning whether he's even the same person anymore, which I thought was a strong finish.