The Flash: "Masquerade" Synopsis Released We're smack-dab in the middle of Season 7 of The Flash, and the new batch of episodes have definitely brought a lot of major changes. In addition to the exit of two of the series' original cast members, Carlos Valdes and Tom Cavanagh, the season has shook things up for the remaining cast members — and now we know exactly where that's going next. On Thursday, The CW released a synopsis for "Masquerade", the thirteenth episode of The Flash's seventh season. The episode is expected to bring some significant trouble for Cecile Horton (Danielle Nicolet), particularly with regards to her psychic powers.