An FBI agent is tasked with infiltrating the US Communist Party, a mission that creates significant turmoil in his personal life. Even his family is unaware of his true allegiance, leading to tension and suspicion as he balances the two worlds. Cast: - Frank Lovejoy as Matt Cvetic - Dorothy Hart as Eve Merrick - Philip Carey as Mason - James Millican as Jim Blandon - Ron Hagerthy as Dick Cvetic - Paul Picerni as Joe Cvetic - Richard Webb as Ken Crowley - Konstantin Shayne as Gerhardt Eisler - Edward Norris as Harmon - Hugh Sanders as Clyde Garson - Hope Kramer as Ruth Cvetic Runtime: 97 minutes