riveting

US /ˈrɪv.ɪ.t̬ɪŋ/
UK /ˈrɪv.ɪ.t̬ɪŋ/
"riveting" picture
1.

completely engrossing; fascinating.

:
The documentary was absolutely riveting from start to finish.
Her performance was so riveting that the audience was completely silent.