To the Dearest Intruder

To the Dearest Intruder is a 2015 Taiwanese television series created and produced by Eastern Television. It stars Amber An, Melvin Sia, Aggie Hsieh and Marcus Chang. Filming began on April 18, 2015, and wrapped up on August 14, 2015. First original broadcast began on August 22, 2015, on TTV airing every Saturday night at 10:00-11:30 pm.

Synopsis
Sometimes best friends like all the same things. But what happens when one of those things is the same man? Song Jia An and Luo Shao Qing are best friends in college. They both are in love with Yan Hao, but Shao Qing learns that Jia An has been saying from childhood that she plans to marry Yan Hao. However, Yan Hao develops feelings for Shao Qing and may have chosen her over Jia An. But his life is suddenly thrust in a different direction when his father is shot to death over money issues, leaving Yan Hao to pay off his father's debt while also trying to establish his own company. Jia An stays by his side during this trying time, so Shao Qing feels she needs to be out of the picture. Ten years later, Yan Hao and Jia An are married and meet up with Shao Qing again at a school reunion. When Yan Hao sees Shao Qing again, he realizes that he is with the wrong woman. Can he make things right after 10 years or will the cruel hands of fate get in the way again?

Main cast

 * Amber An as Song Jia An (Ria) - The naive and real wife of Yan Hao (Ivan).
 * Melvin Sia as Yan Hao (Ivan)
 * Aggie Hsieh as Lo Shao Qing (Sharlene) - The main antagonist of the series. she is the mistress of Yan Hao, Lo Shao is mentally unstable and psychopath.
 * Marcus Chang (Marco) as Zhang Zhen Lun

Supporting cast

 * Frankie Huang as Sun Zhong Xian
 * An Jun Peng as Yan Ran
 * Da Wen (Guo Wen Yi) as Du Mei Mei
 * Bai Bai (Bai Jing Yi) as Dou Ying Jun
 * Shen Pei Yi as Maggie
 * Xie Shan Shan as Zhuan Zhuan

Cameo

 * Chen Bor-jeng as homeless elderly man
 * Ma Nien-hsien as interviewer
 * Joseph Ma (actor) as Li Zhi Wei
 * Francesca Kao as Lo's mother
 * Su Yi Jing as Mrs. Ye
 * Jeff Chang (actor) as Brother Chen

Soundtrack
王笠人
 * If We Meet Again 如果我們再相遇 by Wang Li Ren
 * Don't Say You Never Loved 別說沒愛過 by William Wei 韋禮安
 * We Are Still In Love 我們依然愛著 by Fran
 * Us 我們 by Jing Wen Tseng 曾静玟 feat. Fang Wu 吳汶芳
 * Every Third Person 每個第三者 by Hope Yang 楊蒨時
 * Ten Years 十年(國) by Eason Chan 陳奕迅
 * Good to Have You 有你真好 by Christine Fan 范瑋琪 feat. Rainie Yang 楊丞琳

Episode ratings
Competing dramas on rival channels airing at the same time slot were:
 * SET Metro - When I See You Again, Bromance
 * TVBS Entertainment Channel - Youth Power, Wake Up, Taste of Love
 * EBC Variety - Love Cuisine, Marry Me, or Not?
 * Much TV - Ba Ji Teenagers