The Continuing Adventures of Mark Vincent and Quinton Mann Can things possibly run smoothly when a CIA spook moves in with a WBIS spy? If they’re Quinton Mann and Mark Vincent, they damned well better had. Quinn, having resigned from the CIA after the debacle of a covert agent being outed, is now living with Mark. Over the next year and a half, they learn to navigate the seas of their relationship together, dealing with a death in the family and Quinn’s new career as a writer, while friends from Mark’s previous life reach out for help and the CIA tries to get Quinn back.