Serial Season 1 Episode release dates & where to watch

1. Harold and Mabel

A quiet loner stalks new prey as a nurse's firing sends her spiraling toward a violent breaking point.

2. Masks We Wore

On Halloween, Harold meets a former classmate. Mabel's care trouble stirs buried childhood trauma.

3. Harold's Mom

Harold seeks love but unleashes darkness. Mabel seeks shelter in Uncle Tony's garage, but he has other plans.

4. When Harold Met Mabel

A strange errand, an eerie accident, and a caretaker with secrets. Harold finds peace comes with a price.

5. Merry Christmas Harold and Mabel (Holiday Special)

Harold's Santa gig ends early, until Mabel quietly clears the way for his return.

6. Whispers In The Water

Mabel and Harold form a bond as a body is found, and a social worker comes snooping.

7. My Name Is Harold

Harold's new job brings trouble as memories haunt him, while Mabel faces a dangerous situation at home.

8. Harold the Hare

Harold's Easter Bunny gig leads to police questions, while Mabel reveals shocking truths about her past.

9. Shut up and Dance

Detective Kershaw closes in as Harold and Mabel confront a dark past that only deepens their twisted bond.

10. A Night To Remember

Mabel makes a move, but Harold's clueless, until trouble strikes and Aunt Gertrude stirs the pot.

11. The Triangle of Death

Harold struggles with guilt over the jogger, while Mabel faces a threat from a doctor about her past.

12. Carving Season (Holiday Special)

A carved pumpkin at work brings Harold face to face with the legend Mabel warned him about: The Carver.