Part 4/7:
As Ludo and Melanie devise a plan to alter the past, the beginning stages of their attempts reveal the complexities of changing time. Their first test proves successful—Ludo's instructions to avoid a party alter the future. However, the satisfaction is short-lived when Ludo discovers the grim reality of fate: altering one event leads to unintended consequences, including changes to Melanie's death date.
What unfolds next is a tangled web of attempts to figure out the mystery surrounding Melanie's death, which they soon realize was not an accident but murder. Ludo uncovers the connection between past and present murders through subtle details—a distinctive ring found on both victims indicating a serial killer’s signature.