I Know This Much Is True

Synopsis

The parallel lives of identical twin brothers Dominick and Thomas Birdsey in an epic story of betrayal, sacrifice and forgiveness set against the backdrop of 20th century America.

First Air Date: 2020-05-09

Last Air Date: 2020-06-13

Number of Seasons: 1

Number of Episodes: 6

Created By: Derek Cianfrance

Networks: HBO

View Technical Specifications on IMDb

Top Cast

Mark Ruffalo as Dominick Birdsey / Thomas Birdsey
Melissa Leo as Concettina Ipolita Tempesta 'Ma' Birdsey
Rosie O'Donnell as Lisa Sheffer
Archie Panjabi as Dr. Patel
Kathryn Hahn as Dessa Constantine
John Procaccino as Ray Birdsey
Rob Huebel as Leo
Michael Greyeyes as Ralph Drinkwater
Gabe Fazio as Shawn Tudesco / Dominick and Thomas Acting Double
Rocco Masihi as Young Thomas Birdsey

Seasons

Miniseries (2020)

No overview available for this season.

Episodes:

Ep. 1: Episode One (2020-05-09)

After paranoid schizophrenic Thomas Birdsey has a violent public breakdown, Dominick Birdsey finds himself stepping up to defend his identical twin brother in unexpected ways. As he navigates the fallout, Dominick reflects on their childhood growing up under the tyrannical rule of their volatile stepfather, Ray, and their desire to know the identity of their biological father.
Ep. 2: Episode Two (2020-05-16)

Tensions rise between Dominick and his live-in girlfriend, Joy, as the media begins to take an interest in Thomas' case. In his attempt to have Thomas released from the Hatch forensic institute for the criminally insane, Dominick finds a potential ally in social worker Lisa Sheffer, but learns that helping his brother may be more difficult than he thought.
Ep. 3: Episode Three (2020-05-23)

Sheffer preps Dominick for a pivotal hearing with Hatch’s review board that could decide Thomas’ fate. A chance encounter with an old classmate brings painful childhood memories to the surface. Dominick reflects on his and Thomas’ time together at college, during which he met Dessa and the signs of his brother’s illness first began to manifest. Joy attempts to remedy the problems in her and Dominick’s relationship.
Ep. 4: Episode Four (2020-05-30)

Despite the protestations of those closest to him, Dominick returns to work before fully recovering from his accident. Heavily medicated, Dominick recalls the disturbing incident that lead to Thomas’ first hospitalization while counting down the hours to Thomas’ hearing with the Hatch review board.
Ep. 5: Episode Five (2020-06-06)

Upon learning the details of his Sicilian grandfather's arrival in the early 1900s to Three Rivers, Dominick becomes convinced his family is cursed. A startling update on Thomas from an unlikely source prompts Dominick to take drastic action.
Ep. 6: Episode Six (2020-06-13)

A lifetime of animosity between Dominick and Ray spills over in public at an inopportune time. After an unexpected tragedy, Dominick seeks reconciliation with those he has hurt. Series finale.