When secrets about Cat's family are revealed, it will change everything Cat knew about her past.
Cat and Vincent go on a date out in public in an attempt to be a normal couple, which backfires on them. Meanwhile, Gabe reveals some information that gives Cat hope they can find a cure for Vincent.
Cat asks Gabe to attend her family’s annual remembrance of her mother, which makes Vincent incredibly jealous. Cat also learns some information that makes her think her mom might still be alive.
Gabe comes clean to Cat that he knows about Muirfield. Vincent does not think Cat should trust Gabe and is suspicious of his intentions, which causes tension between them. Meanwhile, JT and Vincent finally find a new place to live.
Evan confesses his love to Cat and admits that he tipped off Muirfield to Vincent’s whereabouts. Meanwhile, Gabe finds evidence that someone in the department is a mole who was working with the vigilante.
JT suspects that Catherine is the trigger of Vincent's blackouts, so to disprove this theory, Vincent allows JT to inject him with endorphins and sedatives that force him into a fugue state.