Keyser became involved in theater during his last two years at Harvard College, appearing in a number of theatrical productions.
[citation needed] During law school, however, Keyser became focused on screenwriting; while there he met future writing partner Amy Lippman.
In 1988, Keyser and Lippman moved to Los Angeles, California and were signed on to write teleplays for L.A. Law and Equal Justice.
The show deals with issues involving relationships, romance, school, work, growing-up, and life and death.
Keyser (along with Lippman) received the Humanitas Prize for the episode "Thanksgiving", where the Salingers wound up confronting the mysterious drunk driver that was responsible for their parent's deaths.
The team of Keyser/Lippman has continued to develop TV programs such as Significant Others and Time of Your Life (a spin-off of Party of Five starring Love Hewitt's character Sarah leaving San Francisco in favor of New York and searching for the biological family she never even knew she had).
[8] However, on August 21, 2020, Netflix reneged on the renewal deal and canceled the series, citing complications of the COVID-19 pandemic having led to cost increases and difficulty scheduling production.