When a group of masked mercenaries infiltrate the Bank of Philadelphia, the objective is to steal five pink Argyle diamonds from a safety deposit box. Things run smoothly until one of the gunmen; 28-year-old Liam Matthews ends up locked inside of the vault with 23-year-old bank teller Remi Catalano. One of them will make a fateful decision that drastically alters the robbery's outcome. In its aftermath, their actions inadvertently have a profound effect on the other, which will ultimately define who they both truly are.