cliffhanger
/ˈklɪfˌhæŋə(r)/noun
1- a dramatic and exciting ending to an episode of a serial, leaving the audience in suspense and anxious not to miss the next episode（分期连载的）惊险故事, 悬念故事; （分集播放的）惊险剧集, 悬念剧集。
1.1
- a story or event with a strong element of suspense悬念故事; 悬念事件：
the match was a cliffhanger right up to the final whistle.
比赛的悬念一直持续到裁判终场鸣哨。