Twice Upon a Time - Season 1 (2019)

Months after breaking up with his girlfriend Vincent mistakenly receives a box containing a wooden cube. Investigating it he discovers it is a portal to the past -- a past which he and his girlfriend are still together.

Vincent's journeys into the past complicate his present life as he tries to avoid whatever cost his relationship with Louise to end. Meanwhile the owners of the cube send the original delivery man to Vincent's home to recover it.

Vincent's obsession with visiting Louise in the past jeopardizes his current relationships, especially with his young son. Although he tries to use the cube outside of his basement to prove his story, it doesn't work.