Movie guide
A Sister's Secret (2018): movie guide
A Sister's Secret (2018) is a Drama, Thriller, TV Movie running about 85 minutes. It holds a TMDB score of 7.2/10 from 40 votes. Notable cast includes Margaret Anne Florence, Paula Abdul, Donny Boaz, Josh Ventura. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 2018-08-05
- Runtime: 85 min
- TMDB: 7.2/10
- Genres: Drama, Thriller, TV Movie
Last updated: 2026-11-11 · First listed: 2018-08-05

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What is A Sister's Secret about?
Twin sisters secretly swap places on their thirtieth birthday. The harmless prank becomes a nightmare when one of them is murdered.
Cast highlights
A Sister's Secret features Margaret Anne Florence, Paula Abdul, Donny Boaz, Josh Ventura, Catherine Dyer, David Alexander Kaplan. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 2018-08-05. Runtime: 85 minutes. TMDB score: 7.2/10 (40 votes). Genres: Drama, Thriller, TV Movie. Original language: en. Status: Released.
Discover A Sister's Secret on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse A Sister's Secret, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is A Sister's Secret?
- A Sister's Secret is listed as Drama, Thriller, TV Movie on TMDB.
- How long is A Sister's Secret?
- A Sister's Secret runs about 85 minutes.
- Who stars in A Sister's Secret?
- Cast highlights include Margaret Anne Florence, Paula Abdul, Donny Boaz, Josh Ventura, Catherine Dyer, David Alexander Kaplan.
- Does Cinema Box stream A Sister's Secret?
- No. Cinema Box is discovery-only — trailers, details, ratings, and watchlists. It does not host or stream full movies.
- Where can I track A Sister's Secret?
- Open the A Sister's Secret page on cinemabox.app or install the official Cinema Box Android app from Google Play for watchlists and discovery tools.








