Series is frozen in time?

About a year ago I found a series on Netflix in a series in which 2 teenagers find a box with which they can freeze the time. Then a blue man appears on the scene and wants to kill her. Maybe someone knows how this series or episode is called? At first I thought it was Black Mirror, but I did not find the episode there.

Maybe it's one of those here:

- Time: The case of Kalief over

- Inception

- Limtless