Bommai

A member of British Intelligence assumes a fictitious criminal identity and allows himself to be caught, imprisoned, and freed in order to infiltrate a spy organization and expose a traitor; only, someone finds him out and exposes him to the gang...

He’s a Wardriver: a hacker who steals from banks, not people—until he’s noticed. Now the money turns violent, and the woman caught in it could save him or kill them both.

Federal agent Alexandra Barnes believes that Catherine Petersen is a serial killer who marries rich men and then murders them for their money. But since Catherine is seemingly a master of disguise and has multiple identities, Alexandra can't prove anything with conventional detective work. With no other option, she goes undercover, pursuing the same man as Catherine, and hoping that Catherine will slip up and reveal her true identity.

20 men are chosen to participate in the roles of guards and prisoners in a psychological study that ultimately spirals out of control.